A tool used to firm or pack materials used in chemical experiments or blasting operations.
| 单词 | θ67230 |
| 释义 | the world > matter > chemistry > equipment or apparatus > [noun] > instruments (33) rammer1660 A tool used to firm or pack materials used in chemical experiments or blasting operations. water hammer1765 An evacuated tube partly filled with water, which when the tube is reversed falls to the other end with a noise like a hammer blow, used to… saccharometer1784 A form of hydrometer for estimating the amount of sugar in a solution by specific gravity; used esp. in brewing to ascertain the amount of… thermometer1801 figurative. alcoholometer1803 Any of various instruments for measuring the concentration of alcohol; esp. (a) a hydrometer calibrated to show the proportion of alcohol in an… alcohometer1809 = alcoholometer, n. cryophorus1813 An instrument for demonstrating the freezing of water by evaporation, invented by W. H. Wollaston (cf. Wollaston, n.). nitrometer1821 An instrument designed for the determination of the amount of nitrogen in a compound; esp. †(a) (originally) an instrument devised by Andrew Ure… alcoometer1825 = alcoholometer, n. alcoholmeter1831 = alcoholometer, n. blanchimeter1847 An instrument for measuring the blanching power of chloride of lime and potash; a chlorometer. wet-bulb1849 designation of that one of the two thermometers of a psychrometer the bulb of which is covered with muslin, which is wetted at the time of… absorptiometer1855 Chemistry. A device for measuring the amount of gas absorbed by a liquid. Now historical. microtome1856 Originally: †an instrument for microdissection, resembling tiny shears (obsolete). In later use: any of various instruments used to cut thin sections… argentometer1879 An instrument for determining the strength of silver solutions. Brix1897 Used attributively of a hydrometer calibrated according to the Brix scale, a scale for the measurement of the specific gravity of a sugar solution… Ostwald pycnometer1898 a pycnometer in the form of a bulb joined at the top to a horizontal capillary tube and at the bottom to a U-tube bearing a graduation at the level… turbidimeter1905 An instrument for determining the turbidity of a liquid from the decrease in the intensity of a beam of light passing through it. Ostwald viscometer1911 an instrument in which the viscosity of a liquid is determined from the time taken for a measured volume to pass through a capillary bore in a U-tube. oedometer1915 A device for measuring the consolidation of a soil or other material when pressure is applied under controlled conditions. impinger1922 Any of various instruments for collecting samples of the particles suspended in air (or another gas), this being either drawn into a liquid or… polarograph1925 An apparatus for automatic chemical analysis in which a sample solution is electrolysed at successively higher voltages and the resulting current… photogoniometer1927 Crystallography. An instrument for photographically recording the X-rays diffracted at known angles by a crystal or substance. ultramicrotome1953 A microtome for cutting sections thin enough for electron microscopy (typically about 300 nanometres thick). Subcategories:— for measuring alkalinity (1) — for measuring acidity (2) — for measuring salinity (3) — practice of using (3) |
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