The pump features a variable discharge port design which adjusts automatically to the internal compression ratio of the vacuum pump resulting in maximum efficiency throughout the vacuum range.
我们公司生产的液环真空泵，具有不同的出料口，自动调节内部压缩率，已达到最大的真空效率。
2
And they themselves are more attention to eliminate internal management, improve the burden of output ratio, reduce costs and improve the overall efficiency.
而他们自身则更多地关注消除内部管理的负担、提高产出比、降低成本和提高整体效率的方面。
3
The proposal of increasingcompression ratio without essential increase in temp. and pressure makes it possible to raise the efficiency of internal combustion engine.