This article points out a method for the selection of polarographic base solution using orthogonal design experiment, when single factor changes.
本文提出了在单因素变化实验基础上，以正交设计实验确定极谱最佳底液体系的方法。
Secondly, with the orthogonal design method and single-factor-experiment, the technics of synthesizing Hydroxyl-terminated copolymer of CHO -thf have been studied in this paper.
其次，本文用正交实验设计和单因素寻优等有关实验方法对端羟基环氧环己烷-四氢呋喃共聚醚的合成工艺进行了研究。
Furthermore, we determined the best environmental factors by single factor and orthogonal design method.
采用单因素和正交设计的方法，得到最佳的外界环境因素。
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