英语词汇“needle valve”是什么意思，“needle valve”的读音、用法及例句翻译-乐坝网

词汇	needle valve
释义	needle valven.（名词） 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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