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- At present, this vertical air-cooled Roots pump and crew have been in the petroleum, chemical, plastics, pesticides, steam turbine rotor balancing. 目前，这种气冷式直排大气罗茨泵及机组已经在石油、化工、塑料、农药、汽轮机转子动平衡。
- A rotor profile suitable for gas-cooled Roots pump 适用于气冷式直排大气罗茨泵的一种转子型线
- roots pump systems with water ring 罗茨水环真空机组
- Arc-trochoidal gear oil pump and its application to roots pump 圆弧-泛摆线齿轮油泵及其在罗茨泵上的应用
- The Study on the Magnetic Fluid Sealing of Dry Roots Pump 干式罗茨真空泵磁流体密封的研究
- Analysis on pumping speed of roots pump unit 罗茨真空泵机组抽气速率分析
- Some plants push their roots deep into the soil. 一些植物的根深深长入土中。
- On the maximum compression ratio of roots pump at zero flowrate 提高罗茨泵最大零流量压缩比的探讨
- ROOTS PUMP SYSTEMS WITH WATER(OIL)RING VACUUM PUMPS 罗茨水环(液环)真空机组
- We must not forget about the grass roots. 我们绝不能忘记民众。
- It has its roots deep in the Middle Ages. 它起源于遥远的中世纪。
- Once I took a wife I should have to put down roots. 我一旦娶了老婆，就该过安定的生活了。
- Pull up these plants by the roots. 将这些植物连根拔起。
- Study on the Profile of Circular Arc Rotor of Roots Pump 罗茨泵圆弧转子型线研究
- Many Americans have roots in Europe. 许多美国人祖籍在欧洲。
- The dog was snuffling around the roots of a tree. 那条狗在树根处嗅来嗅去。
- A tyre expands when you pump air into it. 轮胎一打气就鼓起来。
- She has no real roots in this area. 她原籍不在这儿。
- Lashing velocity of pump is concerned with nature of air. 泵的抽气速率与气体的性质有关。
- It is vain to attempt to root out heresy by force. 试图用暴力消除异端邪说是徒劳的。
