pressure vacuum pump是什么意思

用法例句

In view of the problems present in the old tester, a new tester is designed by adopting the developed oilless vacuum pump and test - display unit based on chip computer and vibrating pot pressure sensor.

针对原检查仪存在的问题 ,研制了无油真空压力泵和以单片机为控制核心基于振动筒式压力传感器的测量显示组件 ,设计了新的检查仪。

Study on regeneration of ethanol-loaded activated carbon by microwave irradiation under vacuum condition;

载乙醇活性炭真空微波解吸实验研究

The research of far-infrared drying of carrot under vacuum conditions;

胡萝卜远红外真空干燥试验参数的研究

Effects of overlap steps on oxygen production by vacuum pressure swing adsorption;

重叠步骤对真空变压吸附制氧性能的影响

The influence factors on the polyester polycondensation vaccum system and their treatment;

影响聚酯缩聚真空的因素及处理

Different type of vaccum pump and its combination used in existing polyester plant were introduced,also the economic analysis was done.

介绍已有的聚酯装置中所使用的不同形式的真空泵及组合 ,并对其进行经济分析。

Introduced are four displacing methods, namely complete mixing, non-mixing, vaccum deaeration, and pressure displacement.

介绍了常用的四种置换方法,即完全混合置换、无混合置换、真空置换和加压置换。