The 3 times safety factor of the recommended load to the test load ensures optimal working conditions.
推荐负载安全系数为3，确保最佳的工作条件。
In the mine actual operation, the actual load of the steel tope strands in the steel rope would be uncertain, but the actual working load would be critical to the safety of the work.
钢丝绳在矿井实际工作中绳股中的实际载荷并不明确，而实际工作载荷对工作的安全性至关重要。
Close the door guardrail workers into the elevator guide rail, plug, attached to a safety rope, the load center should as far as possible in the center position of the working table.
作业人员进入液压升降机后应关闭护栏门，插上插销，系上安全绳，载荷的中心应尽量处于工作台面的中心位置。
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