Two doors interlock each other though photoelectricity switch, automatically open and close, convenient for people (goods) to enter or exit.
通过光电感应开关实现两门互相联锁，自动开闭，为人（货）进出提供便利。
The interlock is the essential system of air lock to prevent the door which controlled open at same time.
门联锁是气闸室的重要机构。其作用是防止受控制的门不会被同时打开。
The interlock is the essential system of air lock to prevent the door which controlled open at same time.
门联锁是气闸室的重要机构。其作用是防止受控制的门不会被同时打开。
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