As an important part of multi-rope frictionhoist, steel rope is the key to the safe operation of all the equipments.
而钢丝绳作为多绳提升机的重要组成部分，是整个设备安全运行的关键。
2
The paper establishes the general differential equations about elastic liner wear problem of mult-rope frictionhoist considering the differences of rope's length and rope grooves.