| 释义 |
drill down
drill 1 D0390600 (drĭl)n.1. a. An implement with cutting edges or a pointed end for boring holes in hard materials, usually by a rotating abrasion or repeated blows; a bit.b. The hand-operated or hand-powered holder for this implement.c. A loud, harsh noise made by or as if by a powered tool of this kind.2. a. Disciplined, repetitious exercise as a means of teaching and perfecting a skill or procedure.b. A task or exercise for teaching a skill or procedure by repetition: conducted an air-raid drill; a drill for learning the multiplication tables.3. The training of soldiers in marching and the manual of arms.4. Any of various marine gastropod mollusks, chiefly of the genus Urosalpinx, that bore holes into the shells of bivalve mollusks. U. cinera is destructive to oysters.v. drilled, drill·ing, drills v.tr.1. a. To make a hole in (a hard material) with a drill: a bit for drilling masonry.b. To make (a hole) with or as if with a drill: drills holes in trees with its chisellike bill.2. To strike or hit sharply: The batter drilled a single through the infield.3. a. To instruct thoroughly by repetition in a skill or procedure: drill pupils in grammar.b. To infuse knowledge of or skill in by repetitious instruction: drilled the correct spellings into the students' heads. See Synonyms at teach.4. To train (soldiers) in marching and the manual of arms.v.intr.1. To make a hole with or as if with a drill.2. To perform a training exercise.Phrasal Verb: drill down To view data or other information at a more detailed level: business software that allows users to drill down from annual to monthly sales figures.
[Obsolete Dutch dril, from drillen, to bore, from Middle Dutch drillen; see terə- in Indo-European roots.]
drill′er n.
drill 2 D0390600 (drĭl)n.1. A shallow trench or furrow in which seeds are planted.2. A row of planted seeds.3. A machine or implement for planting seeds in holes or furrows.tr.v. drilled, drill·ing, drills 1. To sow (seeds) in rows.2. To plant (a field) in drills.
[Perhaps from drill, rill, from Middle English drille, sip.]
drill 3 D0390600 (drĭl)n. Durable cotton or linen twill of varying weights, generally used for work clothes.
[Short for drilling, alteration of German Drillich, from Middle High German drilich, threefold, fabric woven with three threads, from Old High German drilīh, alteration (influenced by drī, three, -līh, adj. suff.) of Latin trilīx, triple-twilled; see trellis.]
drill 4 D0390600 (drĭl)n. A large monkey (Mandrillus leucophaeus) of west-central African forests, having an olive brown body and a brightly colored face and resembling the mandrill.
[Possibly of West African origin.]drill down vb (intr, adverb) to look at or examine something in depth: to drill down through financial data. Translationsdrill down
drill down1. To bore a hole down into something; to drill in a downward direction. Unfortunately, we need to drill down into the ground to try to find the burst pipe.2. To examine or study something in detail. OK, how can I drill down and get more information on each payee on this spreadsheet?See also: down, drilldrill down (to something)to bore downward to something or some distance. We drilled down to a layer of waterbearing sand, hoping to make a well. They had to drill down to bedrock to make a base for the piers that hold the building up.See also: down, drilldrill down
drill down[¦dril ′dau̇n] (computer science) In data mining, viewing data at a greater level of detail; for example, viewing individual sales as opposed to viewing total sales. drill down (database)(Or "drill-down analysis") To examine data ingreater detail, especially, in reporting, to interactivelyselect some item from a summary and display the data thatcontributed to that item, broken down by some extra parameter.
For example, when viewing your company's total worldwide salesfor each month of this year, you might drill down to seeOctober's sales by country, then again to see October's salesin Afghanistan by product and so on.
This kind of analysis is often supported by some kind of data warehouse.drill downTo move from summary information to the detailed data that created it. For example, adding totals from all the orders for a year creates gross sales for the year. Drilling down would identify the types of products that were most popular. The ability to drill down can be performed in a single application or by using a combination of applications. See decision support system, pivot table and multidimensional views.MedicalSeeDSSFinancialSeedecision support system |