He bent the wire into the shape of a square.
他把铁丝折成正方形。
Using the bent method , we do two point ray tracing in dipping layered media and have acquired solutions iteratively with the improved Marquardt least square .
利用弯曲法进行有倾角的层状介质的两点射线追踪，并采用改进的阻尼最小二乘法迭代求解。
This paper introduces the producing and technology characteristics of the square and rectangular double-welded seam pipe. And designing of the pass parameters of the cold-bent channel steel.
介绍了双焊缝方矩形钢管生产技术的特点及冷弯等边槽钢孔型设计参数。
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