By use of the theory of after filter, the problems of selecting new boundary point when several points border upon each other and symmetrical combination for outline points are analyzed.
利用后滤波的原理，对多邻接点时新边界点的选择和轮廓端点的对称合成等问题进行了分析，采用构造拟合曲线查找表进行曲线拟合的方法实现反走样。
It is known that setting point and cold filter plugging point of low pour point diesel with cold flow promoter can reverse during the storage and use process.
加入低温流动性能改进剂生产的低凝柴油，在储存和使用过程中存在凝点、冷滤点反弹回升现象，因此对辽河原油的常压柴油、加氢裂化柴油进行了加剂研究。
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