stacking coal造句

例句与造句

1. Analyzing the principle of equation fetching something for the coal stacker and establishing mathematics model for it , i analyze the principle of mixing coal while stacking coal elementarily , and use the punish function method to make process optimum
   分析了斗轮机等量取料的原理并建立了相应的数学模型，并初步分析了斗轮机在堆煤时的混配煤原理，用罚函数法对其进行了优化。
2. It's difficult to find stacking coal in a sentence. 用stacking coal造句挺难的