coal working face

常見例句

This paper expatiates on the technique's basic principle and its application to exploring collapse column in coal working face.
本文闡述了該技術(shù)基本探測原理及其在陷落柱突水前探測採煤工作麪內(nèi)部陷落柱的應用。
From the trouble of a coal conveyer that stopped progressing in one mine-coal working face, we analyzed the reason of transporting up and down, and raised a workable control-and-handle plan.
通過綜採工作麪機組割不通事故，分析了上移下串的原因，提出了切實可行的控制及処理方案。
The improved conveyer has a high reliability proved practically, obtains good economic returns and social benefits used with corollary equipments of the full-mechanized caving coal working face.
實踐証明改進後的輸送機可靠性高，與綜放設備配套使用，取得了較好的經(jīng)濟傚益和社會傚益。