The forming technology and parameters for hot forging of the brass brake shield, and the structure and the working process of the die were introduced.
介绍了黄铜闸板热锻成型工艺和参数，还介绍了模具结构及工作过程，提出了在热锻过程中应注意的几个问。
Through on the spot test and theoretical calculation, the regular pattern that the used hot blast parameters of the grain drier change with the variation of working conditions was revealed.
经理论计算及现场试验，揭示了粮食干燥机废气参数随其工作条件的改变而发生的规律性变化。
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