With the tenet of updating designing , keeping improving and customer being supreme , recently svec has developed more and more vacuum products , such as 2x series rotary vane vacuum pumps , h and h3 series rotary piston vacuum pumps , 2sk series water ring vacuum pumps , roots pump system with rotary piston pumps . roots pump system with rotary vane pumps , roots pump system with water ring pumps and etc . these products are also taken great attention by our former and user 秉承本公司一贯的设计理念和精益求精，用户至上的经营宗旨，本公司近来又先后开发了和国内同类主导产品具有良好互换性的2x系列旋片真空泵， h和h3系列滑阀真空泵、 2sk系列水环真空泵以及罗茨滑阀真空机组、罗茨旋片真空机组、罗茨水环真空机组等系列真空获得产品，推出市场以来，倍受用户关注。
The principle , the structure , the prevention of back - streaming of pump oil , the reducing noises , the designs and the calculations of the pump are described in detail in order to systimatically understand , correctly use and reasonablly maintain the sliding vane rotary pump to benefit enterprises 作者从该泵的原理、结构、防止返油、降低噪音以及设计计算等诸多方面进行了详细论述，其目的在于使广大用户对旋片真空泵有一个比较系统的了解，从而正确使用和合理维修旋片真空泵将给企业带来可观的经济效益和社会效益。
