凹模型孔设计有一定圆角，凸模带有侧刃，并采用了可靠的定位等措施有效地控制了六角工件的对角线尺寸。
The diagonal dimension of the hexagon parts is controlled by reliable position setting units, small round corner for female module designing and the male module with lateral sharp edge.
本文根据对角线评定方法，对平面度测量的数学模型及不确定度的评定进行了探讨。
According to the diagonal principle, this article described how to establish the mathematical model for the flatness measurement and evaluate the uncertainty in flatness measurement.
并且该模型对裂缝系统的相对渗透率不作取对角线的假定。
Relative permeability curve in fracture system without simplifying assumption is adopted in the model.
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