entrance frame

• 电梯门框

entrance frame的用法和样例：

例句

1. The door fits flush into its frame.
   门正好与门框紧密吻合。
2. Warp is any distortion in the door itself, and it does not refer to the door in relation to the frame or the jamb in which it is hung.
   弯曲是指门页自身引起的变形，不牵涉由于门页悬挂在门框或边框上引起的变形。