A special feature is when pressing the call button with the car already stopped at the current floor, a unique chime is heard.
有一个特别的功能，就是于当客卡已经停在当前楼层时按下启动按钮，会听到一个独特的响声。
A special feature is when pressing the call button with the car already stopped at the current floor, a unique chime is heard.
有一个特别的功能，就是于当客卡已经停在当前楼层时按下启动按钮，会听到一个独特的响声。
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