anchor arm的用法和樣例：
例句
- A new anchor applied to the stoping tunnel supporting of coal mine is recommended.
介紹了一種用于煤礦回采巷道支護的新型錨桿。 - The obtained results are shown that the anchor bolts supports in the fissured rock mass is good to raise the safety of the whole structure of grottoes.
結果表明，錨桿的加固作用是明顯的，在有裂隙的部位打入錨桿對石窟整體結構的安全性是有益處的。
