1896, in Roentgen rays "X-rays," in recognition of German physicist Wilhem Conrad Röntgen (1845-1923), who discovered X-rays in 1895. As a unit of exposure to radiation, it is attested from 1922, proposed in French in 1921.
实用例句
1. Roentgen Diagnosis of Neonatal Gastro - esophageal Reflux ( Report Of 44 Cases )
新生儿胃食管返流影像学分析 ( 附44例报告 )来自互联网
2. Roentgen discovered X - rays; Darwin found many new species on the Galapagos Islands.
伦琴发现了x射线; 这里发现了很多古物.来自互联网
3. William Roentgen discovered X - rays.
威廉?伦琴发现了 X 射线.来自互联网
4. Employing Distortion Compensated Roentgen Analysis, rotational and translational motion at adjacent levels was quantified prospectively.
应用变形补偿X线分析, 并对相邻节段旋转和平移活动进行预期的量化.来自互联网
5. Medical X - rays are well - known, but they are not focused images castray discoverer Wilhelm Roentgen in 1895.
众所周知的是医学用的 X 射线, 但是它们并不是聚焦成象的——只是光线通过身体投下的影子,利用的是1895年威廉·伦琴率先发明的技术.来自互联网
