1. a mechanical device for engaging and disengaging gears. 
   用来结合和分解齿轮的机械装置。
2. cause to stop operating by disengaging a switch. 
   切断电源使停止运作。
3. A jointed tool for cleaning an oil pipeline and disengaging obstructions. 
   刮管器一种用来清洗油管和清除阻塞物的节状工具
4. Any of various devices for engaging and disengaging two working parts of a shaft or of a shaft and a driving mechanism. 
   离合器一种使轴的两个职能部分或轴与机械驱动装置处于相咬合或相分离状态的设备
5. That puts IT in the position of being the guardian of a customer's buying experience.The consumer doesn't want to know if the pallet is in the warehouse, but he does want to know where his package is and whether the product he wants is in stock or not. 
   这就使it部门处在客户购买经历过程中向导的地位，客户不需要知道货盘是否在仓库中，但他确实要知道他的货箱在何处，他要的产品是否有货。

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