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We should check the original documents of Pre-Qin period to distinguish whether "Hetu" and "Luoshu" are lattice diagram or not.
欲判明先秦文献中所记载的“河图”、“洛书”是否点阵之图，首先应求于先秦文献中有关“河图”、“洛书”的原始记载。
With characters of phase diagram, simplex lattice method and single factor alternative method were used to optimize formulation of microemulsion respectively.
根据相图特点，分别对两个系统采用单纯形网格法和单因素轮换法进行优化。
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