单词	activity decay
释义	activity decay 射性衰变
随便看	command-in file command information commanding commanding apparatus commanding communication commanding general commanding generals commanding height commanding heights of economy commanding house commanding impulse commandingly commandingness commanding officer commanding officer of troops commanding officers commanding officer's cabin commanding officer's subsidy commanding officer's wardroom commanding point commanding presence commandings commanding ship commanding tower command injection 及1 及2 及3 及4 及宾有鱼及时行乐及溺呼船及瓜而代及笄年华及第成名広がる広げる広げる広さ広っぱ広まる広め広め広める広やか