prestressed concrete cross-beam
prestressed concrete cross-beam
预应力混凝土横梁
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Based on the demands of two limit states, the design control equations of cross section for prestressed concrete beam are derived and the direct design method is presented.
根据两类极限状态的基本要求，建立了预应力混凝土梁截面设计的控制方程，提出了直接设计方法。
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