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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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更新时间:2025/8/5 17:18:33