利用正交实验设计方法，初步研究和探讨了磷、铁营养盐交互作用对隐藻生长的影响。
The interrelated influence of iron and phosphorus nutrients on the growth of Cryptomonas sp. was studied by using the orthogonal experiment design method.
介绍了爆破漏斗的实验设计和实验方法，并对实验结果进行了分析。
The experiment design and method of loose blasting funnels are introduced in this paper, and an analysis of the test results is carried out.
方法采用同胞对和随机病例-对照两种实验设计。
Methods Both sib-pairs and random case-control designs were used.
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