Which of the following belong to the development roadway? ( )
A、MainShaft;
B、Haulagemainroadway;
C、Maincross-cut;
D、Districtrise
发布时间:2025-08-22 16:37:29
A、MainShaft;
B、Haulagemainroadway;
C、Maincross-cut;
D、Districtrise