auto-die of heat variation 热变位自动机头
Variation of striper force and clearance between punch and die plate with respect to shear plane and die stress were analyzed.
分析了不同压边力和凸凹模间隙对精冲断面质量和模具应力的影响关系。
Based on research on mechanism of non die drawing deformation of thermal coupling casing, law of drawing speed variation was analyzed, and the mathematical model for non die drawn casing established.
通过对热电偶套管无模拉伸变形机制的研究，分析了拉伸速度的变化规律，并建立了无模拉伸套管的数学模型。
The variation of evapotranspiration rate has negative relation with water table change, and if the water table lowers greatly Tamarix will die from moisture shortage.
蒸散速率与地下水位变化成反相关关系，地下水位的大幅度下降可能致使柽柳死亡。
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