本文重点研究通过备件分类来提高配件物流的运作效率，提高服务水平。
The thesis keystone is using inventory compositive class mode to make SPL more effective, promoting the service level.
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。
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.
第二种方法是运用协同学理论从系统协同运作的角度，建立评价体系，计算工程设备维修配件物流系统的协同度。
The first approach USES entropy information measurement method from the system structure point of view, to evaluate service parts logistics system's interoperability.
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