【醫(yī)】 decay

1. 核衰變產(chǎn)生的微粒或電磁波放射物的原子或分子由于核衰變放出的一束微?；?a href="/hycd/d/d134771.htm" target="_blank">電磁波
   A stream of particles or electromagnetic waves emitted by the atoms and molecules of a radioactive substance as a result of nuclear decay.
2. 繼承元素某種元素放射性衰變的直接產(chǎn)物
   The immediate product of the radioactive decay of an element.
3. 射氣幾種氡的同位素的放射性氣體，是放射性物質(zhì)衰變的產(chǎn)物
   Any of several radioactive gases that are isotopes of radon and are products of radioactive decay.
4. 衰變的具有相對較短的壽命而衰變，常用于亞原子粒子
   Decaying with relatively short lifetime. Used of subatomic particles.

衰的英語翻譯：

變的英語翻譯：