| 单词 | dead-weight valve |
| 释义 | > as lemmasdead-weight valve dead-weight valve n. (also dead-weight safety-valve) a safety-valve kept down by a heavy weight. ΚΠ 1904 G. F. Goodchild & C. F. Tweney Technol. & Sci. Dict. 151/2 Dead weight safety valve. 1927 T. Woodhouse Artificial Silk: Manuf. & Uses 16 A dead-weight safety valve. 1930 Engineering 10 Oct. 461/2 Should the steam stop valve on the boiler be closed..the deadweight valve is opened. < as lemmas |
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