发布时间:2025-01-16 10:08:37
阳台挑梁是悬挑构件,主要受力钢筋是上部钢筋。打断底部钢筋对梁的受力有一定影响,梁端加了一个柱子作用不大。
双向可控硅三个接线柱a k ak是接什么线的是怎么控制导通和关断的多谢
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