The real effect the Hydraulic load does for the effect of water biological pre-treatment by elastic packing.
水力负荷的大小对于弹性填料生物预处理净化水质的效果随不同项目有不同的影响。
2
A hydraulic setting anchor of type GY241, and a double packing ZY331 back washing packer features in self pack and rubber sleeve pack are developed.
研制了液压坐封gy241型锚定器和“自封与压缩胶筒”双重密封的ZY331型反洗封隔器。
3
The text is main to discuss to used for the hydraulic cylinder sealing capability of packing, and how to reduce leakage of the hydraulic cylinder, increase its sealing reliability.