挑顶 meaning in Chinese
back brushing
backslash
bar down
barring down
brushing the roof
overcut
rip the roof
roof brushing
second ripping
top brushing
top canch
Examples
- Tunnelling machines - road headers , continuous miners and impact rippers - safety requirements
隧道掘进机.巷道掘进机联合采矿机和冲击式挑顶机.安全要求 - Tunnelling machines - road headers , continuous miners and impact rippers - safety requirements ; german version en 12111 : 2002
隧道掘进机.巷道掘进机联合采矿机和冲击式挑顶机