rock dusting, underground mine
rock dusting, underground mine
[专利英汉词典]
rock dusting, underground mine【固定建筑物】
岩石灰，地下矿
是什么意思，rock dusting, underground mine的解释，rock dusting, underground mine的翻译
rock dusting, underground mine
[专利英汉词典]
rock dusting, underground mine是什么意思，rock dusting, underground mine的解释，rock dusting, underground mine的翻译