This pump range is supplemented by gear pumps providing virtually pulseless flows and piston pumps for very accurate metering and highly corrosive fluids.
泵产品范围还包括提供无脉冲流量的齿轮泵，以及提供精确计量和适用于强腐蚀性流体的柱塞泵。
2
The paper introduces the development of the precise meteringpump with two \ | way piston for sampling flue gases, its characteristic and applications.
文章介绍了双向活塞式精密气体采样计量泵的研制及其特性和应用。
3
And the pistonpump, diaphragm pump and gear pump is different, the screw pump can be used for filling and as a metering agent.