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。
The orthogonal test design method is very suitable to be popularized and applied in minor enterprises because of its features of scientific method, easy operation, lower cost and striking effect.
正交试验设计法以其方法科学、操作简便、费用节省、效果显著等特点，十分适合在小企业推广运用。
The composition was optimized by tiny alloying, orthogonal test design and the hardness and impact toughness test for the different samples with different combination of alloy composition.
该技术采用微合金化，利用正交试验设计方法，对不同成分搭配的试样进行宏观硬度和冲击韧性测试，优化了合金成分。
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