英语词汇“head valve”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

> as lemmas

head valve

head valve n. Mechanics a valve at the upper end or inlet of a pump, pipe, etc.

ΚΠ

1836 6th Rep. Comm. Managem. Post-office Dept. App. 167 (table) in Parl. Papers XXVIII. 145 [Engine, fire]... Foot valves and head valves.

1875 E. H. Knight Amer. Mech. Dict. II. 1087/1 Head valve (Steam-engine.), the delivering valve. The upper air-pump valve.

1905 Trans. Manch. Geol. Soc. 28 460 Bergmanns arranges a second head valve over the one situated in the cylinder, the space between the two having a regularising effect on the work of the pump.

2004 D. Summitt Tales Cold War Submariner xvi. 231 The head valve on the snorkeling mast was shutting and opening quite frequently as waves came in on over the snorkel's head and then fell away.

extracted from headn.¹

as lemmas

单词	head valve
释义	> as lemmas head valve head valve n. Mechanics a valve at the upper end or inlet of a pump, pipe, etc. ΚΠ 1836 6th Rep. Comm. Managem. Post-office Dept. App. 167 (table) in Parl. Papers XXVIII. 145 [Engine, fire]... Foot valves and head valves. 1875 E. H. Knight Amer. Mech. Dict. II. 1087/1 Head valve (Steam-engine.), the delivering valve. The upper air-pump valve. 1905 Trans. Manch. Geol. Soc. 28 460 Bergmanns arranges a second head valve over the one situated in the cylinder, the space between the two having a regularising effect on the work of the pump. 2004 D. Summitt Tales Cold War Submariner xvi. 231 The head valve on the snorkeling mast was shutting and opening quite frequently as waves came in on over the snorkel's head and then fell away. extracted from headn.¹ < as lemmas
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