So you drove without a seat belt and you didn't die in a car accident, does that mean you want your kid driving without a seat belt?
所以如果你开车不系安全带，而且也没有死于车祸，这并不意味着你也希望你的孩子开车也不系安全带？
Moulding technology of specular seat is analyzed and the injection mold of this plastic part gets designed furthermore working process and key points of die design and manufacture are provided.
分析了镜座的成型工艺，设计了该塑件的注射模，并介绍了该模具的工作过程和模具的设计与制造要点。
Contrasting machining technology with punch technology of elastic seat ring, analyzing the error created by punching, introducing the characteristic of punching and the structure of cut and carry die.
对弹性阀座的机械加工工艺和冲压加工工艺进行了对比，并分析了冲压加工所产生的误差，介绍了冲压加工的特点及级进模的结构。
Contrasting machining technology with punch technology of elastic seat ring, analyzing the error created by punching, introducing the characteristic of punching and the structure of cut and carry die.
对弹性阀座的机械加工工艺和冲压加工工艺进行了对比，并分析了冲压加工所产生的误差，介绍了冲压加工的特点及级进模的结构。
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