一个车库门开启装置是电机设备，在打开一个按钮按下一个车库门。
A garage door opener is an electric motor appliance that opens a garage door at the push of a button.
机电设备包括：站台屏蔽门、站台安全门及配件、电梯、扶梯、人行道梯、立体车库等交通设备；
Electro-mechanical equipments: platform door, safe door and accessories, elevators, escalators, moving sidewalks, solid carport and other traffic equipments;
机电设备包括：站台屏蔽门、站台安全门及配件、电梯、扶梯、人行道梯、立体车库等交通设备；
Electro-mechanical equipments: platform door, safe door and accessories, elevators, escalators, moving sidewalks, solid carport and other traffic equipments;
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