Pump 种类 : 回转油垫帮浦(Rotary oil-sealed pump) : 帮浦内部有一旋转的偏心转子(rotor)，转子上有一对受弹簧力之翼(vane)。
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oil sealed rotary vacuum pump 油密封式旋转真空泵
rotary oil sealed mechanical pump 旋转式油封机械泵
oil-sealed rotary pump 石油蒸馏泵
rotary oil-sealed pump
旋转油封泵
以上为机器翻译结果，长、整句建议使用 人工翻译 。
As there were leak on contact place between shaft and rotor body in built up hollow rotor, dropping discharg gas speed of pump and efficiency applied of oil sealed sliding vane rotary vacuum pump.
组合式空心转子由于轴头与转子体之间的结合面存在着渗漏，使泵的抽气效率性能下降，从而影响其在应用中的效率。
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