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头喷嘴的瞬态动,存在着压力行波,使从普通喷嘴射出的有定程度的脉动。
声明:以上例句、词性分类均由互联网资源自动生成,部分未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。
No two actions are ever identical. We must mention here also a little regarding pulsations and the appearance or semblance of continuity. Every action involves a pulsation; you will recall we spoke of the pulsation of atoms and molecules.
没有两个行动是完全相同。我们还必须在此提及一点关于脉冲和连续性外貌或表象。每一个行动都涉及到脉动;你会记得我们曾谈到原子和分子脉动。