作者初步研究了将样条函数引用于逼近石油馏份，即所谓由“连续”组份构成的“复杂”物系。
The author introduced the spline approximation techniques to the numerical simulation of petroleum fractions, which are known as the so called "continua" mixtures of "infinite" number of components.
样条函数以其特有的优点可以用来逼近任意的连续曲线，且具有很高的精度。
Spline functions can be used to approach arbitrary continuous curves with high accuracy.
本文就非闭光滑曲线上关于第二类边界条件的复三次样条函数的逼近误差进行了论讨，取得了较好的结果。
In this paper, we discussed the approximation errors of complex cubic interpolation spline on open smooth curves under the second boundary condition and got the better results.
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