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1.前言 随着大城市市内交通网的改进,架空铁道、地下铁道等交通设施日益立体化,为此设置的自动扶梯也比过去增多,并且出现了增大自动扶梯扬程的趋势。此外,还由于人们已认识到自动扶梯除具有大量连续输送能力的特点以
1. INTRODUCTION With the improvement of the urban traffic network in metropolitan cities, more and more three-dimensional traffic facilities such as overhead lines and subway lines have been set up and the number of escalators set for this purpose has also risen more than in the past and the trend of increasing the lift of escalators has emerged. In addition, because people have realized that escalators in addition to a large number of continuous delivery capacity of the characteristics of