| 释义 |
manometer|məˈnɒmɪtə(r)|
[ad. F. manomètre, f. Gr. µανό-ς thin, rare + µέτρον measure.]
An instrument for ascertaining the elastic force of gases or vapours. flame manometer: = ‘manometric capsule’ (see manometric).
[1706Varignon in Mem. de l' Acad. Roy. des Sciences 300 Manomètre, ou machine pour trouver la rapport des raretés ou raréfactions de l'air naturel d'un même lieu en différents tems ou [etc.]. ]1730Bailey (fol.) Manometer, Manoscope, an Instrument to measure or shew the Alterations in the Rarity and Density of the Air. 1774Phipps Voy. N. Pole App. 128 Description of the Manometer, constructed by Mr. Ramsden. 1823Blackw. Mag. XIV. 513 You see in it the indications of forthcoming storms..against Ministers, to whom it consequently acts as a manometer. 1867W. W. Smyth Coal & Coal-mining 221 In order to test the different densities of the currents on opposite sides of a brattice,..a manometer or water-gauge is employed. 1875D. Thomson Acoustics in Encycl. Brit. I. 115 The Flame Manometer. 1880J. W. Legg Bile 203 If the aorta be connected with a manometer, the number and force of the pulsations of the heart can be easily registered. 1899Allbutt's Syst. Med. VII. 239 This glass tube..is attached, by a T-tube, to a pressure-bottle and a mercury manometer.
Hence maˈnometry, the use of manometers.
1923Glazebrook Dict. Appl. Physics III. 191/1 (heading) Medium-precision manometry. 1961Lancet 12 Aug. 349/1 Articles on..manometry.., chromatography, and electrophoresis. |