air input to vacuum pump  旋片泵漏气

Air-cooled Roots Vacuum Pump  气冷式罗茨真空泵

Air-jet Vacuum Pump  空气射流器; 空气射流真空器

air-vacuum brake  空气—真空制动

air-vacuum brake system  空气-真空制动系统

Anti-clawed vacuum pump  反爪式真空泵

arrangement of vacuum pump  真空泵布置

aspirator vacuum pump  抽气真空泵

backing vacuum pump  前级真空泵

booster vacuum pump  增强奇空泵

Brief Analysis of Liquid Ring Vacuum Pump  水环式真空泵简析

centrifugal vacuum pump  离心式真空泵

characteristic factor of vacuum pump  特性系数

Clawed dry vacuum pump  爪式干式真空泵

coarse vacuum pump  低真空泵

diffusion vacuum pump  扩散真空泵; 扩散眞空泵

DOUBLE-STAGE WATER RING VACUUM PUMP  一种双级水环式真空泵

dry oil-free vacuum pump  干式真空泵

dry vacuum pump  干式真空泵; 乾式真空泵; 干泵; 优化