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单词
normally closed valve
释义
normally closed valve
美
英
un.
常闭阀
网络
常闭阀门
英汉
网络释义
un.
1.
常闭阀
1.
常闭阀
valve 阀门专业词汇A-Z ... normal valve 定位阀
normally closed valve
常闭阀
normally open valve 常开阀 ...
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2.
常闭阀门
所有的SDV 阀都是自动操作的
常闭阀门
（
Normally Closed Valve
）， 即在无动力源或失去动力源的情况下，阀门处于关闭状 …
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例句
释义:
常闭阀,常闭阀门
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更新时间：2025/8/21 18:55:25