X-rays. Also in singular.
| 单词 | θ79452 |
| 释义 | the world > matter > physics > atomic nucleus > radioactivity > X-rays > [noun] (22) Roentgen rays1896 X-rays. Also in singular. X-ray1896 Physics. Electromagnetic radiation of high energy and very short wavelength (between about 0.01 and 10 nanometres), capable of passing through… X-ray1896 Physics. X-rays, X-radiation (also the X-ray); a beam of X-rays. Subcategories:— study of (1) — examination or treatment with (3) — unit of exposure (1) — narrow beam of (1) — screen displaying (2) — material reducing intensity of (1) — electron tube (3) — higher than usual voltage (1) — voltage used in deep therapy (1) — transparency (2) — graph of intensity (1) — imperviousness to X-rays (2) |
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