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

单词	mud valve
释义	> as lemmas mud valve † mud valve n. Obsolete a valve at the bottom of a boiler through which sediment is removed. ΚΠ 1860 Sci. Amer. 26 May 352/1 The lower parts of the shafts..may be provided with mud valves for blowing off the deposite [sic] as it accumulates. 1878 Manufacturer & Builder June 124 (caption) The sediment is allowed to accumulate until it rises to a level with the outlet, then mud valves, suitably arranged in the bottom of the tanks, are opened and the sediment washed out. extracted from mudn.¹ < as lemmas
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> as lemmas