Radiation protection group, security and a quality assurance group.

辐射保护小组，还有质量保障小组。

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Computer radiation not only jeopardizes our health, but also affects the quality and efficiency of work.

电脑辐射不仅危害我们的健康，而且影响到工作的质量和效率。

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High quality light: no heat and radiation since there is no ultraviolet ray and infrared ray for the spectrum. It belongs to typical green lighting source.

光线质量高：由于光谱中没有紫外线和红外线，故没有热量，没有辐射，属于典型的绿色照明光源。

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The aim is to administer sufficient radiation to achieve an image scan of adequate quality, but not too much to cause harm to the patient.

WSJ: Scientists Find Safer Ways to Test Medical Procedures