double acting pump 双动泵 ; 复动泵 ; 双作用泵 ; 双程泵
simplex double acting pump 单缸式复动泵
duplex double acting pump 双缸复动泵 ; 复式双动水泵 ; 双缸双作用泵
double acting piston pump 双作用活塞泵 ; 双效用活塞泵 ; 双作用式活塞泵 ; 双程活塞泵
simplex x double acting pump 单缸式复动泵
SIMPLER simplex double acting pump 单缸式复动泵
double-acting pump with composite vanes 双作用子母叶片泵
double-acting vane pump 双作用叶片泵 ; 双效用叶片泵
double-acting hand force pump 双作用手摇泵 ; 以作用手摇泵
Aiming at how to reduce the pump noises, a new type of double acting piston radial pump with lower noises is designed here.
就针对如何降低泵的噪声问题，本人设计出了一种新型的低噪声双作用径向柱塞泵。
The noise question of the double-acting vane pump was discussed, and the related ways were proposed to reduce the vane pump noise.
针对双作用叶片泵出现的噪声问题进行探讨，并提出了降低叶片泵噪声的相关途径。
The double-acting variable-vane pump is a new type of variable pump.
双作用式变量叶片泵是一种新型变量泵。
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