| 单词 | pressure balance |
| 释义 | > as lemmaspressure balance pressure balance n. (a) a state of equilibrium between pressures; frequently attributive, designating a device for maintaining such equilibrium; (b) Physics an instrument consisting of a weighted piston mounted vertically in a close-fitting cylinder containing a pressurized fluid, used for producing pressures that can be accurately calculated for calibration purposes. ΚΠ 1850 Sci. Amer. 30 Nov. 87/2 A simple pressure balance valve is not new. 1932 Times 13 May 16/4 The exhibit..included a pressure-balance for the measurement of pressures from 300–2,000 atmospheres. 1958 R. H. W. Kneese & B. W. Sparks tr. A. Guilcher Coastal & Submarine Morphol. vi. 198 The ordinary diving suits used by specialists..are death-traps if the pressure balance is not accurately maintained. 1992 N.Y. Times Mag. 13 Sept. 14/3 Peerless's pressure-balance faucets are easy to install and give consistent temperature regardless of water pressure changes. 2004 Control Engin. Europe (Nexis) Sept. 20 Pressure balances are the most precise pressure measuring instruments available, but require correcting for the critical ambient parameters. < as lemmas |
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