英语词汇“needle 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	needle valve
释义	needle valve needle valve n. A valve having a slender point fitting into a conical seat, used to regulate accurately the flow of a liquid or gas. needle valve n (Mechanical Engineering) a valve containing a tapered rod that can be moved in or out to control the flow of a fluid nee′dle valve` n. a valve with a needlelike part, a fine adjustment, or a small opening. [1900–05] needle valve needle valve [′nēd·əl ‚valv] (mechanical engineering) A slender, pointed rod fitting in a hole or circular or conoidal seat; used in hydraulic turbines and hydroelectric systems. needle valve A type of globe valve in which the throttling is performed by a tapered pin moving in and out of a conical seat to adjust the fluid flow. needle valve A fluid control valve that uses a long tapered needle to finely control the amount of fluid passing through the orifice. The more the needle is in, the lesser is the amount of flow, and vice versa. It can be adjusted as required. AcronymsSeenanovolt
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needle valve