The roof bolter 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。

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The roof bolter 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。

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