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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.
youdao
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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.
youdao