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1·The extraction of flavone by methanol from sweet carambola leaves was studied by a single factor test and orthogonal design test.

利用甲醇浸提、单因素试验和正交试验探讨了从甜杨桃叶中提取黄酮的最佳工艺条件。

2·Methods:The orthogonal design was used.

方法：采用正交实验设计法。

3·Methods: The orthogonal design was used.

方法：采用正交设计法。

4·The Orthogonal Design is adopted to arrange experiment.

主要采用正交设计安排试验。

5·Experiments were scheduled by orthogonal design method.

最后采用正交设计法安排实验。

6·Methods: Examined the abstraction rate by orthogonal design.

方法：采用正交试验法，以提取率为指标。

7·Methods: Orthogonal design and analysis of variance were used.

应用正交设计实验方法和方差分析。

8·Through orthogonal design the optimum conditions were determined.

用正交设计优化了的萃取条件。

9·The optimization was researched with method of orthogonal design.

同时应用正交设计优化各工艺条件。

10·The process conditions were selected by using the orthogonal design.

设计正交试验优化合成二氧化钛的条件。