coal cutting by using rope-suspended cutters_专利英汉词典
coal cutting by using rope-suspended cutters
[专利英汉词典]
coal cutting by using rope-suspended cutters【化学；冶金】
利用绳子悬置刀具进行截煤
是什么意思，coal cutting by using rope-suspended cutters的解释，coal cutting by using rope-suspended cutters的翻译
