Practice results show that ladder Rasching ring filler is low in pressure reduction and good in anti fouling, which can lengthen the operation duration of the washing tower.
实践使用结果表明，阶梯拉西环填料的压降低、抗污堵性能好，可延长洗涤塔的运行周期。
2
This paper is about the design of PC controlling system of normal ring in textile factories and indicates the ladder diagram of controlling system and its working process.
利用PC技术对纺织厂细纱机控制系统进行改造，给出了控制系统梯形图并说明了其工作过程。
3
And the structure of the soft sealing ring of this product is pressed by a metal ring set in the seat within a groove on the ladder which can't drop and be convenient to change.