夏鸾翔是晚清较早研究微积分的中算家，据其《致曲术》、《万象一原》，可知他在二次曲线求积问题上得到了比较全面的成果，有的已超过《代微积拾级》，某些成果近似近代的椭圆积分。
This paper discusses Xia's achievements on the integral problem about quadratic curve, some of which were similar to modern elliptic integral and surpassed the level of Dai-wei-ji.
经过分析中算家对递加数性质的讨论，认为它属于晚清割圆术的基础研究。
In this paper, the ancient Chinese mathematicians discussion on the properties of Dijia Shu being probed, it is taken as the basic studies of the late-Qing cyclotomy.
针对基于相位测量轮廓术解算的相位值，研究了相位值与高度值之间的对应关系。
Given the unwrapped phase map computed based on phase measurement profilometry, the correspondence between unwrapped phase and height value is studied.
针对基于相位测量轮廓术解算的相位值，研究了相位值与高度值之间的对应关系。
Given the unwrapped phase map computed based on phase measurement profilometry, the correspondence between unwrapped phase and height value is studied.
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