grouting shaft sinking
grouting shaft sinking
[冶金学英汉词典]
grouting shaft sinking灌浆掘井法
是什么意思，grouting shaft sinking的解释，grouting shaft sinking的翻译
grouting shaft sinking
[冶金学英汉词典]
grouting shaft sinking是什么意思，grouting shaft sinking的解释，grouting shaft sinking的翻译