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。

The roof bolter is a rubber-tired vehicle used to drill and insert bolts into the roof to support it.

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工业试验表明：开切眼巷道使用改进后的锚杆支护，有利于工作面安全生产，且能降低支护成本。

Commercial tests indicate that adopting the improved bolts are good for safety in production and can reduce support cost.

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