改善尾架与车架的搭接长度，将连接焊缝改为断续焊缝，从而有效地提高了车架的强度。
Also, improve the overlapped length of the tail frame and the frame and change the welding seam into intermittent seam, therefore the frame strength can be effectively increased.
垂直或斜交于应力方向的任何坡口焊缝的有效焊缝长度，应等于被连接部分的宽度。
The effective weld length for any groove weld, perpendicular or skewed to the direction of stress, shall be the width of the part joined.
改善尾架与车架的搭接长度，将连接焊缝改为断续焊缝，从而有效地提高了车架的强度。
Also, improve the overlapped length of the tail frame and the frame and change the welding seam into intermittent seam, therefore the frame strength...
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