掘进机在煤矿开采中被广泛使用。
你可以节省很多钱气体如果您使用此特定掘进机。
You can save a lot of gas money if you use this particular digging machine.
掘进机的截齿与截割头的连接采用焊接形式，焊接工艺比较复杂。
The connect form of cutting tooth and cutting header is welding, welding technics is complex.
掘进机的截齿与截割头的连接采用焊接形式，焊接工艺比较复杂。
The connect form of cutting tooth and cutting header is welding, welding technics is complex.
应用推荐