英语词汇primary shutdown system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	primary shutdown system
释义	primary shutdown system
随便看	inactive test inactive time inactive title bar inactive tracer inactive trust inactive tuberculosis inactive unemployed inactive version inactive virus inactive voice Inactive volcano inactive volume inactive warrant inactive waste inactive water drive inactive well inactive window inactive X hypothesis inactive zone inactivism inactivist inactivity in activity inactivity approach inactivity cost

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