英语语法分析

The quality of freeway structure retailing backwall refilling concerns the freeway global quality.

高速公路构造物台背回填质量关系到高速公路整体质量。

In this paper the authors approach the application of drilling mud to face pre-injection, backwall infilling injcetion, roof fall space infilling injection and split zone infilling injcetion.

本文探讨了泥浆在工作面预注浆、壁后充填注浆、冒空区充填注浆和离层带充填注浆中的应用。