The effect of hot pressing sintering temperature, pressure and time on its properties are investigated by means of orthogonality rejection and variance analysis.
采用正交设计和方差分析的方法研究了热压烧结温度、压力、时间对该砂轮性能的影响。
2
The equations are solved by finite difference method and the mean and variance of pressure head are determined from its random expression.
The effect of root irrigation on removing canal debris and the variance of apical foramen pressure on extracted teeth were compared between the conventional irrigation and CANS irrigation.