Effects of flooding at different developing stages on cotton yield and yield components were studied in the experiment designed by orthogonal combination.
采用正交组合试验设计，人工模拟研究了洪涝中各因素对棉花产量、产量构成因素的影响。
In this paper, densification laws of rotary forging powder sintered preforms and the property of components have been investigated with orthogonal experiment method.
本文利用正交实验等方法在自行设计的实验装置上对粉末烧结体的摆辗致密规律及压实体的性能进行了研究。
Influences of addition amount of all components on solution life-span were also studied by cyclic orthogonal experiment, and optimal process conditions were identified.
用循环正交试验研究了该镀液在反复使用时各组分添加量对镀液使用寿命的影响，从而确定了循环施镀的最佳工艺条件。
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