英语词汇proportional action needle valve怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	proportional action needle valve
释义	proportional action needle valve 简明释义比例针阀网络释义 1 ?比例针阀 ... quick action emergency valve 紧急切断阀 proportional action needle valve 比例针阀 direct action solenoid valve 直动式电磁阀 ...
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英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。