| 单词 | plug valve |
| 释义 | > as lemmasplug valve plug valve n. a valve containing a pierced or perforated plug which is rotated in order to control flow through the valve; cf. plug cock n. (a). ΚΠ 1804 Trans. Amer. Philos. Soc. 6 i. 98 Two methods were proposed to remedy this inconvenience... 1st, to place a large plug-valve..in the rising pipe close to the pump. 1881 N. P. Burgh Mod. Marine Engin. v. 238/1 In the event of instantaneous relief, plug valves are often introduced at the lower ends of the cylinders. 1991 Offshore Engineer Sept. 14/2 Unlike most plug valves Super-H cannot taper lock. < as lemmas |
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