混合梁,合成梁

composite beam的用法和样例：

例句

The line object representing a composite beam should span from support to support.代表复合梁的线性对象必须从一个支座跨越到另一个支座。

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原版英语对话1000个:087 School Life

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acetylcyclohexanesulfonyl peroxide

ahman

alternate aerodrome

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