advance coefficient meaning in Chinese

进程系数
进速系数
前进系数, 前进常数

There are different thrusts and torques corresponds to difference trailing edge cutting value at different advance coefficients . combined with the real hull ' s resistance and the real engine ' s power and revolution , the matching point between hull - propeller - engine and the value of trailing edge cutting can be calculated
在得到不同的进速、不同的切割量下螺旋桨的推力、转矩的情况下，结合实船的阻力和主机的功率、转速等资料就可以计算出使船?桨?机匹配的切割量。