The steady state saturation and transient state saturation of the current transformer are theoretically analyzed and simutated under different burder at secondary side.

针对二次侧不同的负载，对电流互感器的稳态饱和与暂态饱和做出理论分析和仿真。

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流体是一种瞬态流动，存在着压力行波，使从普通喷嘴射出的流体有一定程度的脉动。