Double shaft servo feed system by PLC to control accurately and automatically feed of cylinder head and valve lift.
PLC控制双轴伺服进给系统，精确自动控制缸盖进给和气门升程。
Study of the theory of choosing modification coefficient of double shaft move wheel gear is the key to the rational design of this mechanism.
研究双轴滑移齿轮机构变位系数的选择理论，是合理设计这种机构的关键问题。
Double eccentric shaft vibration exciter is the source of linear vibration.
振动给料机由双偏心轴激振器提供直线振动源。
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