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单词	plug valve
释义	Plug valve (Mech.) a tapering valve, which turns in a case like the plug of a faucet. See also: Plug plug valve plug valve [′pləg ‚valv] (mechanical engineering) A valve fitted with a plug that has a hole through which fluid flows and that is rotatable through 90° for operation in the open or closed position. Also known as plug cock. ground-key valve ground-key valve A valve which controls fluid flow in a manner similar to a ground-key faucet.
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