1. a wall with a face of brick laid flat and a back of brick laid on edge
backwall 片语
片语
Backwall booth靠墻展位
backwall drawer背板抽屉
backwall l后膜
retaining backwall雉墻
backwall injection井壁背后灌浆
backwall grouting壁后注浆
backwall cell后壁光电池
backwall echo底波
backwall 例句
英汉例句
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.