By test and analysis, the direct reasons leading to failures are the defaults in designing coiler mandrel diameter change and controlling hydraulic system program but not the system parts themselves.

通过测试与分析，排除了液压系统元件本身的问题，认为卷筒变径设计缺陷和液压系统程序控制缺陷是故障产生的直接原因。

youdao

A QA team can become much more effective and efficient by replacing an AD hoc testing approach with formal, repeatable processes that include test planning, defect cause analysis, and automated tests.

QA团队通过将包含测试计划、缺陷原因分析，和自动化测试的正式、可重复的过程，替代特殊的测试方法，以变得更加有效且高效。

youdao

The samples were sent for laboratory analysis at the Institut Pasteur, Dakar and confirmed by YF seroneutralization, a highly specific test for yellow fever.

样本送往达喀尔市巴斯德研究所进行实验室分析，并通过YF血清中和试验（一项高针对性黄热病检测方法）予以证实。

youdao

At the time scientists inside and outside the EPA unanimously agreed that the test posed negligible risk. (I wrote the analysis submitted by the Food and Drug Administration.) No new genetic material had been added--only a single gene whose function was well known had been removed--and the organism was obviously harmless.

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