a pump for evacuating a container of air or other gas.
| 单词 | θ212630 |
| 释义 | society > occupation and work > equipment > pump > [noun] > pumps for producing vacua (5) vacuum pump1858 a pump for evacuating a container of air or other gas. mercury pump1869 an air pump that makes use of mercury, spec. (a) = Sprengel pump n. at Sprengel, n. 1a; (b) = mercury vapour pump n. pulsometer1873 More fully pulsometer pump. A kind of vacuum pump with two chambers into which steam enters and condenses, creating a partial vacuum which draws… mercury vapour pump1926 a pump which produces a high vacuum by entraining molecules of the gas to be evacuated in a jet of mercury vapour. roughing pump1958 a pump for evacuating a system from atmospheric pressure to a lower pressure at which a second pump can begin to operate. |
| 随便看 |
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。