grouting behind shaft or drift lining
grouting behind shaft or drift lining
[煤炭科技英汉词典]
grouting behind shaft or drift lining[壁]后注浆
井巷支护后，按设计要求向壁后进行的注浆。
是什么意思，grouting behind shaft or drift lining的解释，grouting behind shaft or drift lining的翻译
grouting behind shaft or drift lining
[煤炭科技英汉词典]
grouting behind shaft or drift lining是什么意思，grouting behind shaft or drift lining的解释，grouting behind shaft or drift lining的翻译