自由长度：拉伸、压缩弹簧两端没有被施加任何外力时的长度值。 一般而言自由长度无关弹簧功能，除非两端闭合处经过研磨加工，否则都允许有较宽松的公差范围，或不做尺寸上的严格要求。
... unsupported covering 非支承蒙皮 unsupported length 自由长度 unsupported distance 自由长度 ...
基于94个网页-相关网页
可测弹簧最大自由长度 Max Free Testable Length
锚杆自由长度 free anchorage length
平均自由程长度 mean-free-path length
导热平均自由程长度 mean-free-path length for Conduction
本文例举了一座钢斜拉桥塔柱、主梁自由长度及其稳定性的计算。
Finally, the calculation of the effective length of the tower and main girder for a certain steel cable-stayed bridge is illustrated.
压缩弹簧由线圈弹簧缠绕而成，线圈之间有空间，以便弹簧从自由长度压缩到最短的，工作长度储能或产生压力。
Compression springs are coil springs wound with spacing between the coils so that they can be compressed from their free length to a shorter operating length to store energy or provide a force.
性能试验应包括渐进式装卸锚杆，以验证锚杆有足够的能力抵抗试验荷载，确认自由长度，并估算锚杆的永久变形量。
Performance tests consist of incremental loading and unloading of anchors to verify sufficient capacity to resist the test load verify the free length and evaluate the permanent set of the anchor.
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