根据规格，安装电梯，自动扶梯，自动人行道，小型送货升降机及相关设备。
Install elevators, escalators, moving walkways, dumbwaiters and related equipment according to specifications.
主要讨论了影响自动扶梯主轮受力的因素及主轮应力的计算。
This article mainly discusses the force factors affecting on the escalator driver and its stress calculation.
包括自动扶梯和电梯的选型、数量及功能划分。
Vertical Traffic Facilities: Including the types, numbers and functions of automatic escalators and lifts.
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