Pneumatic motor is a kernel part of the roofbolter.
锚杆钻机气动马达是该设备的核心部件。
2
The roofbolter is a rubber-tired vehicle used to drill and insert bolts into the roof to support it.
锚杆机是一个用来打锚杆眼安装锚杆来支护顶板的机器，它是用胶轮行走的。
3
The development and research of the bolter, and the improvement of the bolter properties, are the key factors to enhance the quality of the roof bolting support system.