单词	limit switch
释义	limit switch noun : a switch that operates as an automatic control to prevent a mechanism or process from going beyond a prescribed limit Word History First Known Use 1886, in the meaning defined above
随便看	spiny-headed worm spiny-herb spiny-rayed spiny-skinned Spio spionid spir spir- spirable spiracle spiracles spiracula spiracular spiraculum spiraea spiraeae spiraeas spiral spiral axis spiral bandage spiral bevel gear spiral binding spiral chute spiral cleavage spiral conveyor

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