In operating portion, however, rope winds up in single layer, thus squeezing of rope layers is avoided and rope working life is elongated.

在工作区段，钢丝绳为单层卷绕，可避免钢丝绳的层间挤压，延长钢丝绳的使用寿命。

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This paper expatiates the working principle of CAM rope ranging machine for assistant wind in mine and the design calculation.

阐述了矿用调度绞车凸轮排绳机构的工作原理和设计计算原则。

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The calculation formula of torsion moment of multi-strands wire rope as loaded are deducted by internal force analysis of single-strand wire rope and multi-strands wire rope while working.

对普通单层股钢丝绳和多股钢丝绳工作时内部受力进行分析，推导出多股钢丝绳加载时扭转力矩的计算公式。

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Meanwhile, Obama was working a rope line and shaking hands with students on his way out the door.

CNN: Not an ordinary Obama town hall

They had the opportunity to casually chat backstage before and after the event, and I think they both really enjoyed spending that time together and also working the rope line together.

WHITEHOUSE: The White House

But if you ever get the chance to talk to folks who turned out at our rallies, and crowded along a rope line in a high school gym, or saw folks working late at a campaign office in some tiny county far away from home, you'll discover something else.

WHITEHOUSE: Remarks by the President on Election Night