Radiation protection group, security and a quality assurance group.
辐射保护小组，还有质量保障小组。
Therefore, image quality and radiation protection is being concentrated stage by stage in the world.
为此，影像质量与辐射安全防护问题越来越受到人们的普遍关注。
Quality assurance for intensity-modulated radiation therapy(IMRT)is an important issue to study.
调强适形放射治疗的质量保证是一个重要的研究课题。
Quality assurance for intensity-modulated radiation therapy(IMRT)is an important issue to study.
调强适形放射治疗的质量保证是一个重要的研究课题。
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