bolt anchor

• 锚杆

bolt anchor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. A new anchor applied to the stoping tunnel supporting of coal mine is recommended.
   介绍了一种用于煤矿回采巷道支护的新型锚杆。