在此状态下可在任意长度的压杆上，加任意大小的轴向载荷，而不产生弯曲。
With this situation, any amount of axial load can be applied to compressive bar of arbitrary length without bending.
扭结：一段长度的材料产生的绷紧的卷曲，曲折或弯曲，例如因拉紧线的有环部分。
A tight curl, twist, or bend in a length of thin material, as one caused by the tensing of a looped section of wire.
扭结一段长度的材料产生的绷紧的卷曲，曲折或弯曲，例如因。
A tight curl, twist, or bend in a length of thin material, as one caused by the tensing of a looped section of wire.
扭结一段长度的材料产生的绷紧的卷曲，曲折或弯曲，例如因。
A tight curl, twist, or bend in a length of thin material, as one caused by the tensing of a looped section of wire.
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