对预应力混凝土T梁进行优化设计，选取合理的截面有效高度及预应力筋截面面积，可以提高梁的承载能力，降低工程造价。
Optimizing a prestressed concrete T-frame beam, selecting reasonable effective height of section and prestressed steel area can improve the beam's performance and reduce the cost.
增加有缘层长度与有效截面面积，也有利于减小SOA的啁啾。
Reducing input light power or increasing length and effective area of active layer, we can reduce the SOA chirp;
具有环状截面的脉冲萃取柱可以有效地提供更大的柱截面积，并且保证核燃料的临界安全。
A pulsed extraction column with an annular cross section can successfully provide large-cross-section and can be made critically safe for nuclear operation.
阿加特设计局声称这种导引头可以有效地在超过13公里的距离上对付雷达截面积在5平方米的目标。
AGAT claims that it is effective at ranges of up to 13 km against a target with a 5 m2 radar cross-section.
接头界面有效连接面积和接头上引线横截面变形量的变化分别是造成接头电阻波动性和整体增大趋势的原因。
The real contact area of the bond interface and the cross-sectional deformation of the bond wire were the causations respectively for the fluctuation and wholly increase of the resistance.
结果表明，随横向刚度减小，截面受压区面积增大，隧道纵向等效刚度有效率减小；
The analytical results show that, as the transverse rigidity decreases, the area of compressive region increases and the longitudinal effective rigidity ratio decreases.
结果表明，随横向刚度减小，截面受压区面积增大，隧道纵向等效刚度有效率减小；
The analytical results show that, as the transverse rigidity decreases, the area of compressive region increases and the longitudinal effective rigidity ratio decreases.
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