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.
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.
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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