The optimum recipe of yolk powder and sodium nitrite was determined by single factor trial and preference method.

通过单因素试验和优选试验法，得出蛋黄粉和亚硝酸钠的最佳配比。

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METHODS Indicated by the content of sennoside A, the conditions of residue solvent extraction and resin purification were determined by single factor trial.

方法番泻苷A为指标，以单因素考察确定药渣溶剂提取与树脂精制条件。

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The trial has adopted one-factor completely random design.

试验采用单因素完全随机设计。

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The fast pace of change in the IT industry could well be a significant factor as the remedy phase of the trial kicks into gear.

CNN: Analysts: Ruling unlikely to change Microsoft

Bristol-Myers, with partner Pfizer, is testing factor 10a blocker apixaban in a giant 15, 000-patient trial on preventing stroke.

FORBES: Magazine Article

Researchers don't yet know how to explain these correlations -- and since the study was not a controlled trial, it's not clear whether marijuana or some other factor in marijuana users' lifestyles actually accounted for the beneficial effects.

CNN: Marijuana: The next diabetes drug?