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photon

英 ['fəʊtɒn] 美 ['fotɑn]

n. [物] 光子；辐射量子；见光度（等于light quantum）

中文词源

photon 光子

phot-,光，-on,子，词源同ion,electron.

英文词源

photon (n.): "unit of electromagnetic radiation," 1926 in modern sense, from photo- "light" + -on "unit."

双语例句

1. The chance that an electron absorbs more than one photon is negligible.: 一个电子吸收一个以上的光子的机会是极少的.

2. A photon leaving the sun will be " retarded " by the sun's gravity.: 离开太阳的光子因受太阳引力而 “ 减速 ”.

3. When a photon collides with a molecule, several things can happen.: 当光子与一个分子碰撞时, 可发生几种情况.

4. The energy of the photon gives its color, or wavelength.: 光子的能量决定了光子的颜色, 也就决定了它的波长.

5. As with the photon, material particles can be created and destroyed.: 象光子一样, 实物粒子也可以产生和毁灭.