efficiency of loading and unloading造句

Firstly , this article introduces and analyzes various loading and unloading coal technics at home and abroad . secondly , through analysis on common factors which affect the efficiency of loading and unloading coal process , this article puts forward main methods in improving loading and unloading coal technics with this understanding in finding out main resaons which affect loading and unloading coal technics . this article makes a brief introduction on loading and unloading coai technics of sdkpp
首先对国内外对于燃煤装卸工艺的状况进行了分析研究，了解国内外对于研究煤炭装卸工艺采取的方法手段，以及各种不同的装卸工艺情况，其次，结合电力企业内卸煤作业工艺的发展状况和现象，对存在的影响卸煤作业工艺的普遍性问题进行分析，找出影响卸煤工艺的主要原因，提出改进和提高卸煤作业工艺的主要方法和途径。
It's difficult to find efficiency of loading and unloading in a sentence. 用efficiency of loading and unloading造句挺难的