The point contact hoisting rope was taken as an studied example and a model for the fretting wear of steel wires was developed.
以点接触式提升钢丝绳为研究对象，在实验室建立了钢丝绳中钢丝的微动磨损模型。
There shall be no slip and fall off in the sling hanging point, individual sling should be connected in the hoisting structure nodes, no cohesion in the main chord and web members on the middle.
吊索在吊点处不得有滑移和脱落，个别吊索应连接在被吊装结构的节点上，不得衔接在主弦杆中部和腹杆上。
By designing of the construction plan, hang-point choice, the designing and calculation of the steel rows and the link, a hoisting transportation plan is drawn.
通过施工方案、吊点选择、水平运输、钢排设计计算和吊耳的设计计算，最终确定了吊装运输方案。
By designing of the construction plan, hang-point choice, the designing and calculation of the steel rows and the link, a hoisting transportation plan is drawn.
通过施工方案、吊点选择、水平运输、钢排设计计算和吊耳的设计计算，最终确定了吊装运输方案。
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