| 释义 |
noun ˈprʌɪməˈpraɪmər 1mass noun A substance used as a preparatory coat on wood, metal, or canvas, especially to prevent the absorption of subsequent layers of paint or the development of rust. apply three coats of primer count noun new plaster should be treated with a primer Example sentencesExamples - Sand the areas until they are smooth and coat them with interior primer and let it dry completely.
- Research shows that one coat of tinted primer and one coat of paint will give you a better paint job than two coats of paint.
- Fungicides may be added to paint, primer or wallpaper paste to slow fungus growth on treated areas.
- As a general rule, the sequence is primer and undercoat on the woodwork, followed by two coats of emulsion on the walls, then a careful top coat around the woodwork.
- An oil-base primer or stain-blocking latex primer should be applied to the bare wood.
- First, encapsulate the peeling paint by applying a couple of coats of thick primer.
- Paint each plate rail with primer and two coats of white enamel.
- The board walls have a layer of primer and a top layer of blue paint on which the stenciled designs were painted in green, red, black, and ocher, and then a layer of varnish was applied.
- Block-out primers prevent the old paint's color from bleeding through if the previous color is darker or brighter than the new.
- Taking a break from applying the paint to the shingles - a very smelly and unpleasant job - Graham has been sanding down the woodwork and applying a coat of primer.
- The primer and top coat should be compatible and preferably from the same manufacturer.
- Bare spackling on any wall repairs should always be covered with primer before paint or wall paper.
- Oil based primer works best because the paint sticks to it.
- Aluminum siding, however, has a baked enamel finish so it can be sanded or scuffed up, then primed with a special etching primer developed just for this purpose.
- This special primer for wall covering is available at any paint, wallpaper or home improvement store.
- While much of the Scylla still displays the remnants of the original Royal Navy grey paintwork, with patches of rust showing through, the railings have what looks like a fresh coat of silver primer.
- Use caulk to seal all the joints between the bathtub and the covered frame, and coat the wallboard or plywood with moisture resistant primer to seal it.
- Four coats of primer, two layers of drywall mud, three coats of paint, 108 hours of work, and some other miscellaneous steps later, the bathroom is complete.
- The zinc phosphate-coated bodyshell then gets a coat of primer which provides more corrosion protection, along with a good base for the colour coat itself.
- Coated with layers of lacquer, primer, and polychrome, the portrait shows its age in pigment loss and cracks along the face and figure.
- 1.1 A cosmetic applied to the face before another product, intended to improve the coverage and lasting effect of the second product.
it's best to apply primer around the eye to help the make-up blend properly Example sentencesExamples - I'm not a fan of lip primers, but this one was amazing and a lot more smoothing and lasting than most out there.
- Touching your face can wreak havoc on your makeup, even if you wear a primer.
- Skin Base can be used as a primer, concealer or foundation and is available in 18 shades.
- Primer is one of those beauty secrets that can make a big difference in the look and wear of your makeup.
- I have never needed primer: nothing shifts on my eyelids.
- If you have not tried foundation primer, you will find that it helps give you that completed look that you may have been striving for.
- Eyeshadow primer is a must for me - I don’t put color on my lids without putting on some primer first.
2A cap or cylinder containing a compound which responds to friction or an electrical impulse and ignites the charge in a cartridge or explosive. the nitro-cellulose is ignited by the spark that comes from the primer Example sentencesExamples - When ignited by the primer, the igniter sends hot flaming gases around the charge to ignite the propellant.
- When a firing pin drops on a primer igniting the powder charge, the cartridge and cylinder move slightly forward.
- The case is designed for rifle primers, and small rifle primers are used even when loading for handguns.
- The honest concern is about airborne lead ejected by the primer and bullet when a cartridge is fired.
- Lead is a key component in primers as well as bullets, and is responsible for holding together other chemicals that create the controlled explosion of the primer.
3A small pump for pumping fuel to prime an internal combustion engine, especially in an aircraft. no more than four pumps of the primer usually suffice Example sentencesExamples - The engine primer needs to be used only if the engine is ‘cold-soaked’ (at least 5 hours since it was last run).
- While cranking, keep your hand on the primer so you can give it a quick shot as the cylinders fire.
4Biochemistry
A molecule that serves as a starting material for a polymerization process. the duplex RNA primer cannot initiate DNA replication Example sentencesExamples - Sampling occurs when the extract is pipetted into the PCR mix and again when the primers and polymerase bind the template DNA in the PCR.
- The attached glucose is believed to serve as the primer required by glycogen synthase.
- The primase utilizes the DNA strands as templates and synthesizes a short stretch of RNA generating a primer for DNA polymerase.
- It is also possible that the first-group enzymes play important roles in the de novo synthesis of glucan primers and the initiation of starch granules in the endosperm.
- The additional nucleotide used on both primers was adenine.
Rhymes climber, Jemima, mimer, old-timer, part-timer, rhymer, timer noun ˈprʌɪməˈprɪmər An elementary textbook that serves as an introduction to a subject of study or is used for teaching children to read. a first-year philosophy primer Example sentencesExamples - Michael Stacey has written a good primer on his subject.
- For one thing, the division between empiricism and rationalism is not as neat as many philosophy primers would have you believe.
- Nairne's introduction to the art market should serve as a primer for young artists and art historians to understand the institutional structures that control the art market.
- Children used to learn to read from primers that showed pictures of things with their names underneath, to teach them what the written signifier meant.
- For mural lovers, the book is a primer, rather a guide.
- This is perhaps the strongest section of the book, and serves as a great primer for beginning graduate students and non-specialists.
- Gaustad's work is unique in this regard and will serve as one of the best historical primers on the subject for years to come.
- I've been for the last couple of years, looking at children's books, looking at primers that kids read in first grade and second grade, over this century.
- For the uninitiated, the book is a good primer for those readers seeking an introduction to the work of this towering American intellectual.
- Undeterred, Heavey flew to Senegal, reading an oil primer en route to learn the lingo.
- It's no substitute for a proper textbook on the subject, but it's a good primer.
- His strategy ended up paying huge dividends for StockMaster and can serve as a useful primer on capital-raising fundamentals for any company.
- In a not-so-obvious way, the book and the journal serve as a preschool primer in anger-management therapy.
- Regarding the bonus content, we are treated to a full length, scene-specific commentary by director Macer that is a textbook primer for first time filmmakers.
- Despite its title, it is not intended to be either a textbook or a primer on specific debates among historians.
- In sum, Guide to Space serves as an excellent primer for nonscientific readers.
- Read only as a biographical primer, Houdini's Box captures the arc of Houdini's life.
- Heavy metal is far too broad and complex a topic to cover in depth over the course of one film, but A Headbanger's Journey is an excellent primer on the subject.
- Leda Cosmides and John Tooby have produced an excellent primer on the subject so we will use that as a point of reference throughout this post.
- Clearly written, reasonably comprehensive, and addressing contemporary issues this book could well serve as a stimulating primer on imperial history.
Synonyms handbook, manual, guide, reference book, instruction book, abc
Origin Late Middle English: from medieval Latin primarius (liber) 'primary (book)' and primarium (manuale) 'primary (manual)'. nounˈprīmərˈpraɪmər 1A substance used as a preparatory coat on previously unpainted wood, metal, or canvas, especially to prevent the absorption of subsequent layers of paint or the development of rust. Example sentencesExamples - Four coats of primer, two layers of drywall mud, three coats of paint, 108 hours of work, and some other miscellaneous steps later, the bathroom is complete.
- First, encapsulate the peeling paint by applying a couple of coats of thick primer.
- The primer and top coat should be compatible and preferably from the same manufacturer.
- Block-out primers prevent the old paint's color from bleeding through if the previous color is darker or brighter than the new.
- Fungicides may be added to paint, primer or wallpaper paste to slow fungus growth on treated areas.
- The zinc phosphate-coated bodyshell then gets a coat of primer which provides more corrosion protection, along with a good base for the colour coat itself.
- This special primer for wall covering is available at any paint, wallpaper or home improvement store.
- An oil-base primer or stain-blocking latex primer should be applied to the bare wood.
- Sand the areas until they are smooth and coat them with interior primer and let it dry completely.
- Coated with layers of lacquer, primer, and polychrome, the portrait shows its age in pigment loss and cracks along the face and figure.
- Oil based primer works best because the paint sticks to it.
- As a general rule, the sequence is primer and undercoat on the woodwork, followed by two coats of emulsion on the walls, then a careful top coat around the woodwork.
- While much of the Scylla still displays the remnants of the original Royal Navy grey paintwork, with patches of rust showing through, the railings have what looks like a fresh coat of silver primer.
- Aluminum siding, however, has a baked enamel finish so it can be sanded or scuffed up, then primed with a special etching primer developed just for this purpose.
- Bare spackling on any wall repairs should always be covered with primer before paint or wall paper.
- Taking a break from applying the paint to the shingles - a very smelly and unpleasant job - Graham has been sanding down the woodwork and applying a coat of primer.
- Research shows that one coat of tinted primer and one coat of paint will give you a better paint job than two coats of paint.
- Use caulk to seal all the joints between the bathtub and the covered frame, and coat the wallboard or plywood with moisture resistant primer to seal it.
- Paint each plate rail with primer and two coats of white enamel.
- The board walls have a layer of primer and a top layer of blue paint on which the stenciled designs were painted in green, red, black, and ocher, and then a layer of varnish was applied.
- 1.1 A cosmetic applied to the face before another product, intended to improve the coverage and lasting effect of the second product.
it's best to apply primer around the eye to help the makeup blend properly Example sentencesExamples - Touching your face can wreak havoc on your makeup, even if you wear a primer.
- If you have not tried foundation primer, you will find that it helps give you that completed look that you may have been striving for.
- Primer is one of those beauty secrets that can make a big difference in the look and wear of your makeup.
- Eyeshadow primer is a must for me - I don’t put color on my lids without putting on some primer first.
- I have never needed primer: nothing shifts on my eyelids.
- Skin Base can be used as a primer, concealer or foundation and is available in 18 shades.
- I'm not a fan of lip primers, but this one was amazing and a lot more smoothing and lasting than most out there.
2A cap or cylinder containing a compound which responds to friction or an electrical impulse and ignites the charge in a cartridge or explosive. Example sentencesExamples - When ignited by the primer, the igniter sends hot flaming gases around the charge to ignite the propellant.
- Lead is a key component in primers as well as bullets, and is responsible for holding together other chemicals that create the controlled explosion of the primer.
- When a firing pin drops on a primer igniting the powder charge, the cartridge and cylinder move slightly forward.
- The case is designed for rifle primers, and small rifle primers are used even when loading for handguns.
- The honest concern is about airborne lead ejected by the primer and bullet when a cartridge is fired.
3A small pump for pumping fuel to prime an internal combustion engine, especially in an aircraft. Example sentencesExamples - The engine primer needs to be used only if the engine is ‘cold-soaked’ (at least 5 hours since it was last run).
- While cranking, keep your hand on the primer so you can give it a quick shot as the cylinders fire.
4Biochemistry
A molecule that serves as a starting material for a polymerization process. Example sentencesExamples - The primase utilizes the DNA strands as templates and synthesizes a short stretch of RNA generating a primer for DNA polymerase.
- The additional nucleotide used on both primers was adenine.
- The attached glucose is believed to serve as the primer required by glycogen synthase.
- It is also possible that the first-group enzymes play important roles in the de novo synthesis of glucan primers and the initiation of starch granules in the endosperm.
- Sampling occurs when the extract is pipetted into the PCR mix and again when the primers and polymerase bind the template DNA in the PCR.
nounˈprɪmərˈprimər An elementary textbook that serves as an introduction to a subject of study or is used for teaching children to read. a first-year philosophy primer Example sentencesExamples - Clearly written, reasonably comprehensive, and addressing contemporary issues this book could well serve as a stimulating primer on imperial history.
- It's no substitute for a proper textbook on the subject, but it's a good primer.
- Michael Stacey has written a good primer on his subject.
- Despite its title, it is not intended to be either a textbook or a primer on specific debates among historians.
- For mural lovers, the book is a primer, rather a guide.
- For one thing, the division between empiricism and rationalism is not as neat as many philosophy primers would have you believe.
- This is perhaps the strongest section of the book, and serves as a great primer for beginning graduate students and non-specialists.
- Children used to learn to read from primers that showed pictures of things with their names underneath, to teach them what the written signifier meant.
- Read only as a biographical primer, Houdini's Box captures the arc of Houdini's life.
- In a not-so-obvious way, the book and the journal serve as a preschool primer in anger-management therapy.
- Regarding the bonus content, we are treated to a full length, scene-specific commentary by director Macer that is a textbook primer for first time filmmakers.
- Nairne's introduction to the art market should serve as a primer for young artists and art historians to understand the institutional structures that control the art market.
- For the uninitiated, the book is a good primer for those readers seeking an introduction to the work of this towering American intellectual.
- In sum, Guide to Space serves as an excellent primer for nonscientific readers.
- Heavy metal is far too broad and complex a topic to cover in depth over the course of one film, but A Headbanger's Journey is an excellent primer on the subject.
- Undeterred, Heavey flew to Senegal, reading an oil primer en route to learn the lingo.
- Gaustad's work is unique in this regard and will serve as one of the best historical primers on the subject for years to come.
- I've been for the last couple of years, looking at children's books, looking at primers that kids read in first grade and second grade, over this century.
- His strategy ended up paying huge dividends for StockMaster and can serve as a useful primer on capital-raising fundamentals for any company.
- Leda Cosmides and John Tooby have produced an excellent primer on the subject so we will use that as a point of reference throughout this post.
Synonyms handbook, manual, guide, reference book, instruction book, abc
Origin Late Middle English: from medieval Latin primarius (liber) ‘primary (book)’ and primarium (manuale) ‘primary (manual)’. |