电线在拉力状态下会变得略微长点。

If a wire is held under tension, it gets slightly longer.

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而在135度坐姿时，移动最小，说明这时候脊椎所承受的拉力较少，相关肌腱处于较为放松的状态。

It was least pronounced with the 135-degree posture, suggesting less strain is placed on the spinal disks and associated muscles and tendons in a more relaxed sitting position.

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在拱梁组合桥梁设计和施工分析中，确定成桥状态时的吊杆张拉力非常关键。

In design and construction of composite arch and Beam bridge, it is very important to determine the boom tensile force when the bridge is almost completed.

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