And the steel tube provides lateral stress at initial period to make up the defect that constraining force comes up too late.
另一方面使核心混凝土在受荷初期就处于侧向受压的状态,弥补钢管对混凝土紧箍力出现太迟的缺陷。
Equivalent and Difference of Natural Coordinate System with Right Angle Coordinate System When Constraining Anti-force Comes into Being;
在一个惯性坐标系中与物体静止质量相当的能量; 等于静止质量乘以光速的平方。
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