1·The fracture of piston rod of new hydrogen compression pump is studied by metallography and electron probe in this paper.
用金相显微镜和电子探针对新氢压缩机活塞杆断口进行了分析。
2·The application of concentration system with multi - effect thermal compression pump could reduce the consumption of the steam and lower the production cost.
采用多效带压泵的浓缩系统，可大大减少加热蒸汽的消耗量，降低生产成本。
3·Straight line motor twin-tub compression pump of the present invention is compression pump with novel double-stator straight line motor and twin cylinder structure.
本发明所述的直线电机双缸压缩泵，是在压缩泵内设置了新型的 双定子直线电机和与之相配的双汽缸结构。
4·One effective for asthma in 5-micron particles below normal compression pump atomizer atomized particles 5 microns or less in the percentage content of more than 50%.
其中对于哮喘的有效颗粒在5微米以下，一般的压缩雾化泵的雾化颗粒在5微米以下的百分含量在50%以上。
5·As the Roots pump is a non-vacuum inside the compression, the compression ratio is usually very low, so high, medium and vacuum pumps need to pump before.
由于罗茨泵是一种无内压缩的真空泵，通常压缩比很低，故高、中真空泵需要前级泵。
6·In short, because of water ring pump gas compression is isothermal, and it can be pumped in addition to flammable and explosive gases.
总之，由于水环泵中气体压缩是等温的，故可以抽除易燃、易爆的气体。
7·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。
8·A two-stage compression variable frequency air source heat pump (TV-ASHP) has been developed combining variable frequency technology with two-stage compression cycle.
将双级压缩和变频技术有机结合，提出一种适用于寒冷地区双级压缩变频空气源热泵系统。
9·The shape of the suction chamber decides the inlet velocity distribution of the compression grade in the multiphase pump, and affects the performance of the multiphase pump to a degree.
吸入室的形状决定了混输泵的压缩级进口的速度分布，对混输泵的性能有一定的影响。
10·But there are some shortage of ordinary single-stage heat pump in low-temperature environment, such as high compression ratio, devoid heating power and low efficiency.
但普通单级空气源热泵热水器在低温环境下运行中存在压缩比过大、制热量不足和制热效率太低等问题。