engine crank shaft loading

例句：

1. 1. The engineers are busy inspecting the engine crank shaft loading.
   工程师们正在忙于检查发动机曲轴加载。
2. 2.The new model car has a high engine crank shaft loading.
   新款汽车拥有高高的发动机曲轴加载。
3. 3.The engineers found that the engine crank shaft loading was not optimal for efficiency.
   工程师们发现，发动机曲轴加载对于效率并不是最优的。