Most engines in industrial use are rated to run at a constant speed, irrespective of the load they carry.
工业上使用的大多数发动机都以恒定速度运转，而与发动机承受的负荷无关。
2
When the power required by propeller is so high that the shaft speed cann't arrive a rated value, the tip of propeller can be cut to decrease its load.
当螺旋桨要求的功率过高以至于轴转速达不到额定值时，可以采用切割螺旋桨叶梢的方法减小螺旋桨的负荷。
3
Under the condition of ratedload and ratedspeed operation of a generator set, over-vibration phenomena appeared in the planetary gearbox's bearing and the rear bearing of the generator.