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1·In this paper, we have built the mathematical model of optimal design for the twisted bar spring in automobile suspension fork by studying Genetic Algorithms.

本文通过对遗传算法的研究，构造了汽车悬架扭杆弹簧基于遗传算法优化设计数学模型。通过编码的方法，对汽车悬架扭杆弹簧进行了优化设计。

2·The manufacturing technology, stress conditions, construction rules and reinforcement calculation of the laminated floor slabs with cold-rolled-twisted bar are investigated in this paper.

研究了冷轧扭钢筋键式叠合大楼板的制造工艺、受力情况、施工规程和设计配筋计算。

3·Galvanized steel grating: materials for Q235 or 304 stainless steel round bar, square steel, square steel twisted.

镀锌钢格栅横杆：材料有Q 235或304不锈钢圆钢，方钢，方形钢绞线。

4·When testing, it is more likely for cold-rolled and twisted steel bar to be broken in fixture and so that its plasticity can hardly be precisely measured.

冷轧扭钢筋在检测时，试样易在夹具内断裂，其塑性难以精确测定。

5·By selecting test equipment and using high precision scaling device or precisely measuring the primary scale, an accurate testing of cold-rolled and twisted steel bar may be realized.

通过正确选择（或改进） 测试设备和使用高精度刻标机或精确测量原始标距等手段，即可实现冷轧扭钢筋的正确检测。