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介绍了摩擦式提升机更换主绳的一种新方法 ,即新绳进入系统旧绳同时退出系统。并将该法与常用换绳方法的优缺点进行了比较。
A new method of replacing main rope with friction hoist is introduced, that is, the new rope enters the old rope of the system and exits the system at the same time. This method is compared with the advantages and disadvantages of the common changing method.