This paper researches argumentation, structural design and referencecoefficient calculation of 1200pinion housing rebuilding when it's applied to 790 first rolling mill.
就1200齿轮座应用到790开坯机上所进行的改造情况作了方案论证，结构设计和参考数计算。
2
Voltage Reference in the design, how to achieve high-precision, low temperature coefficient is a major difficulty.
在基准电压源的设计中，如何实现高精度、低温度系数是一大难点。
3
Having the aid of position coordinate of reference separation point, the point can be moved to outlet of vane by changing coefficient of vane shape.