tubular rock bolt

• 管式锚杆

tubular rock bolt的用法和样例：

例句

1. The improved rock mass parameters have been applied to the support action analysis of tensioned and grouted bolts by using the existing analytical solutions.
   详细讨论了预应力全长粘结式锚杆通过改善围岩力学参数对岩体的加固作用，给出加固岩体的等效力学参数解析表达式。