Use a wire sling of a greater S. W. L whenever the exact weight of the load is unknown or there is a hazard to personnel.
当无法确定载荷的准确重量或对人员存在危险时，使用大于安全工作负荷的钢丝绳。
2
This method is used for calculating the fatigue reliability of a structural system, and the relation between load and reliability is described by R-L curve.
应用该方法计算了结构系统的疲劳可靠性，用r - L曲线给出载荷与可靠性的关系。
3
How to check the connection correctness of "l", "n", "s" lines is discussed on the shortcomings of on-load test for zero-sequence power direction component.