through the analysis and calculation of the drawing process of the front cover of the brake cylinder the technological method for drawing the taper part was introduced
通过对制动缸前盖拉深工艺的分析计算，介绍了拉深锥度零件的工艺方法
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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