1.  decay
2.  disintegration
3.  alpha decay

• 1. 衰变: decay | beta decay | alpha decay
• 2. 衰变产物: decay product | descendant | decay daughter | radon decay products
• 3. 衰变链: decay chain | decay series | sequence decay | chain decay

更多释义

• 1.43号元素的衰变速度非常快。
  Element 43 has a very fast rate of decay.
  dict.yoduao.com
• 2.真空衰变的基本条件是存在强电场。
  The essential condition for the decay of the vacuum is the presence of an intense electric field.
  dict.yoduao.com
• 3.它一旦从分裂的铀中产生，就会很快衰变。
  It's just that once was generated from split Uranium, it decayed very quickly.
  dict.yoduao.com

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