nozzel

1.Abstract： Some related parameters of nozzel installation positi on and the influencing regulation of the slotting numbers of untwisted tube on the yarn strength were researched.

摘 要： 研究了气纺嘴安装位置有关参数及解捻管槽数强力的影响规律。

2.Fluid is conveied to bit nozzel through drill string from pump is a transient state flowing with pressure wave, which makes the fluid jetted out from nozzel has certain pulsation.

从钻井泵经过钻柱内部输送到钻嘴的流体是一种瞬态流动，存在着压力行波，使从嘴射出的流体有一定程度的脉动。