In this study, the kinds of additive and extraction conditions are sieved by orthogonal designing method.
本文用正交试验设计法对添加剂种类和浸取条件进行筛选研究。
The water extraction process of iron and aluminum oxides from superphosphate is experimented and studied by orthogonal designing method and the kinds of additive and extraction conditions are sieved.
本文用正交设计方法对过磷酸钙水浸取过程中倍半氧化物的浸出进行了实验研究，筛选了添加剂的种类和浸取条件。
In this paper, an orthogonal designing method was used for the optimal design of an exhaust muffler for vehicle.
利用正交设计方法对汽车的排气消声器进行优化设计，弄清了不同参数对消声器性能的影响和变化规律。
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