hand brace

• 手摇钻

hand brace的用法和样例：

例句

1. Hand drilling also decreases the risk of breaking off a guidewire in the scaphoid.
   手摇钻也可以减少导针在舟状骨内折断的风险。
2. One technique is to use power reaming to penetrate the first cortex and then switch to hand reaming.
   可以用电钻突破第一层皮质，然后换成手摇钻扩孔。