物理诊断学是一门操作性和实践性都很强的课程。
Physical diagnostics is a highly operative and practical course.
操作叙述：描述由电气化门用五金控制的门操作。
Operation Narrative: Describe the operation of doors controlled by electrified door hardware.
这个门是要用手操作的。
右2号服务门逃生滑梯操作标牌翘起。
移位全开式操作门，方便检修及更换锤片。
Shift full opening operation door, maintenance and replacement of hammer are convenient.
快启式操作门，换筛及时清理方便快捷。
Quick opening operation door, convenient and quick to replace and clean the screen.
手动释放手柄：停电时可以用手动操作车库门。
Move to release the hand handle: Have a power fail can move to operate the garage door by hand.
大面积的维修门，简明的操作面板，操作简单，维护方便。
Large maintenance door, concise control panel, easy operating, easy maintenance.
打开操作面板和墨盒保护门。
关闭顶层厅门，在轿顶点动操作上下行按钮，注意电梯运行方向，要与动作的按钮方向一致。
Close the landing door of the top floor, press the up or down button, check if they work well.
关闭顶层厅门，在轿顶点动操作上下行按钮，注意电梯运行方向，要与动作的按钮方向一致。
Close the landing door of the top floor, press the up or down button, check if they work well.
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