例句與造句

1. Used by millwrights and mechanics for enlarging keyways , slots , etc . , and have one safe edge
   主要是為了擴(kuò)大鍵槽、槽孔等。同時(shí)有一個(gè)安全邊緣。
2. Hand files are used for flat surfaces . files have one safe edge , and are therefore ideal for filing close to shoulder
   主要在平面使用。它有一個(gè)安全邊緣，是最為理想的銼削工具。
3. It's difficult to find safe edge in a sentence. 用safe edge造句挺難的