Burs的中文翻譯是什麼意思

He picked off the burs that had stuck to his overcoat.

他摘下粘在外衣上的刺果.

Methods: The root canalroot canal orifice burs and helical drilling bits were prepared in advance.

方法: 採用根管口臺階狀車針與螺旋型根管鑽組合起來擴大根管.