If technologists could not properly take a simple chest X-ray, how can they be expected to safely operate ct scanners or linear accelerators?
如果技术员不能准确进行一次简单的胸透检查，怎么能指望他们安全地操作CT扫描仪或线性加速器呢？
2
The complex ray theory provides a simple and useful approach to analyze the propagation and scattering of HF EM waves in various complicated environments.
复射线理论为高频电磁波在各种复杂环境中的传播和散射提供了一种简便而有效的分析方法。
3
Well, it can be simple sprain . But I think to be on the safe side we ought to have it X-Ray.