X ray ['eksrei]

X ray A penetrating electromagnetic radiation, usually generated by accelerating electrons to high velocity and suddenly stopping them by collision with a solid body, or by inner-shell transitions of atoms with atomic number greater than 10; their wavelength ranges from about 10(-5) angstrom to 10 angstroms, the average wavelength used in research being 1 angstrom ['eksrei]

环境

röntgenstrålning

英语词库

X-rays

缩写

very short wavelength

X-ray ['eksreɪ]

军队, 缩写

X

化学

Rontgen beam technology

技术