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单词 needle valve
释义 needle valven.(名词)
  1. A valve having a slender point fitting into a conical seat, used to regulate accurately the flow of a liquid or gas.针状阀:装在圆锥形阀座上的有细杆的阀,用于准确地调整液体或气体的流动
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更新时间:2025/5/3 16:26:50