The method mainly comprises back welding and front welding.

该方法主要包括反面焊接、正面焊接。

youdao

The research object of thesis is XLP petrochemicals, study use of the method mainly includes SWOT analysis and Porter's theory .

论文的研究对象是翔鹭石化及其所处的行业环境，研究所用的方法主要有SWOT分析与波特五力模型分析。

youdao

The method mainly comprises the following steps of: (1) leading wastewater to flow into a grating to retain a suspending pollutant in large volume;

本发明主要包括以下步骤：（1）废水先进入格栅，截留大体积悬浮污染物；

youdao

To be frank, my favorite notification method implemented on any mobile OS is the status bar on Android, mainly because it's easily accessible and navigable the vast majority of the time (it gets hidden in certain apps).

ENGADGET: Back to BlackBerry: closing time Mobile

Another method, used mainly in Pennsylvania, is to simply use treatment facilities to clean up the fracking wastewater before it heads into local rivers and streams.

FORBES: 3 Thoughts On The N.Y. Fracking Ban