current operation短语³⁰⁸⁸⁴ 基本例句 目前业务 Then, according to the current operation status of service parts logistics system and its existing problems, it analyzed the collaboration need of after- sales parts logistics. 本文的重点内容是以工程设备维修配件物流系统为对象，从两个角度出发，研究了两种系统协同性评价方法。 fabiao