文档编号:JX452 有图纸,文献综述。说明书字数:18825.页数:63
Abstract Liquid's pressing a pump is the motive component of oil liquid which presses system to provide certain discharge and pressure toward the liquid, it is each core component that the liquid presses the indispensability in the system, reasonable of choice liquid's pressing a pump can consume a ﹑ exaltation the efficiency ﹑ of the system to lower a Zao voice ﹑ an improvement work function and assurance system for liquid pressing system of of dependable work all very important
摘 要…………………………………………………………………………………………… Ⅰ 绪论……………………………………………………………………………………………4
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