它有一个安全边缘，是最为理想的锉削工具。
Files have one safe edge, and are therefore ideal for filing close to shoulder.
切削性操作 有錾削、锯削、锉削、攻螺纹、套螺纹。
Chisel cutting operation of cut, cut cut, cut file, attack thread, the thread sets.
对锉削的重要性及锉削课程的实践教学作了具体的论述。
The importance of file cutting and practice teaching of file cutting course are expounded.
对锉削的重要性及锉削课程的实践教学作了具体的论述。
The importance of file cutting and practice teaching of file cutting course are expounded.
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