These procedures make the WHO prequalification process the most transparent of all similar quality assurance programmes to date.

这些程序使世卫组织资格预审过程成为迄今所有类似质量保证规划中最透明的。

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Additionally, the date and revision number of the company quality assurance manual in effect at the time the material was manufactured must be shown on the material test report.

此外，实际上，公司质量保证手册的出版日期和修订版本号在材料用于制造时必须在材料试验报告上说明。

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The book covers the basic Physics behind MRI, quality assurance, up-to-date safety guidelines and a useful gallery of image artefacts.

书在MRI，质量保证，流行的安全指南和一个图像人工制品的有用的画廊后面包括基本的物理学。

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