重点介绍了计算活塞裙部型线方程，给出了从图纸到中凸靠模板曲线板型线设计的方法。
The paper mainly introduces the calculating equation for piston skirt molded lines, the drawing of piston, and the design for convexity mother plate molded lines.
在土木建筑工程中主应力迹线是布筋方向的依据，但是在工程中通常都是徒手或用曲线板近似绘制主应力迹线。
In civil engineering, the disposing of reinforcing steel bars is often based on the analysis of the principal stress traces.
在土木建筑工程中主应力迹线是布筋方向的依据，但是在工程中通常都是徒手或用曲线板近似绘制主应力迹线。
In civil engineering, the disposing of reinforcing steel bars is often based on the analysis of the principal stress traces.
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