英语词汇“needle valve”的读音、翻译、释义、用法及例句-范文网

词汇	needle valve
释义	needle valve【机械工程】针阀。needle: n. 1. 针,缝针；编织针。 2.(注射、唱片等的)针 ...valve: n. 1.【机械工程】阀，活门，舌门；汽门。 2.【解剖 ...
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