单词 | purging-cock |
释义 | > as lemmaspurging-cock purging-cock n. now rare = purge cock n. at purge v.1 Compounds. ΚΠ 1875 E. H. Knight Amer. Mech. Dict. III. 1836/1 Purging-cock, the mud-cock or discharge-valve of a steam-boiler. 1909 Horseless Age 3 Feb. 172/2 It is fitted with a purging cock, so that the whole system may be drained, the pump being at the lowest point of the system. < as lemmas |
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