绝大多数的桥梁中主梁所采用的横截面都是相同的。
Most of the main beams are designed as the single section for the newly-built Bridges.
用数学方法对搅拌捏合机搅拌轴螺杆外形曲线的形成过程进行了详细的推导，得出了主搅拌轴截面曲线形状公式。
The section curve equation of main stirring shaft is obtained by deducting the screw profile curve formation process of the stirring kneader.
在不同类型荷载作用下，双索面斜拉桥主梁不同位置的截面具有不同的应力分布规律。
The rule of stress distribution is different on different cross sections of the girder of cable-stayed bridge with double cable planes under different type of loads.
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