At last, the formulation of allowable minimum bending radius limiting the change of the tube-wall thickness is derived, and proved to be of practical value.
推导出限制弯管壁厚变化量的许用最小弯曲半径公式，经试验验证具有一定的实用价值。
At last, the formulation of allowable minimum bending radius limiting the change of the tube-wall thickness is derived, and proved to be of practical value.
推导出限制弯管壁厚变化量的许用最小弯曲半径公式，经试验验证具有一定的实用价值。
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