It's unnecessary to collect deformed grating images of object reference plane, which reduces operation steps and takes no solution for the phase of object reference plane.
由于不需另外采集实物参考面变形光栅图像，不仅减少了实物参考面的采集步骤，而且不需要对实物参考面相位进行求解。
For unnecessary to collect deformed grating images of object reference plane, it reduces operation steps and takes no solution for the phase of object reference plane.
由于不需另外采集实物参考面变形光栅图像，不仅减少了实物参考面的采集步骤，而且不需要对实物参考面相位进行求解。
Furthermore, we compute the Riemann solution by using a bisection method combined with the phase-plane analysis.
进一步地，我们采用二分法与相平面分析结合的方法计算压差方程的数值解。
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