rock bolt

• 锚杆

rock bolt的用法和样例：

例句

1. This proved the design of this bolt was successful.
   证明该锚杆的设计与研制是成功的。
2. Description is made on the principle and application result of the short group bolting of slushing roadways in loosened rock.
   论述了短锚杆群支护碎裂岩石中耙道的原理及实施效果。