您要查找的是不是：
- fermi beta decay theory 费米衰变理论
- In some kinds of beta decay, a nuclide loses surplus positive charge by emitting a positron (in the same event, a proton becomes a neutron, and neutrinos are also given off). 以某种贝它衰减，一个核素靠发出一个正电子失去剩余正电荷(在相同的事件中，一个质子变成一个中子，而且也发射微中子)。
- The Coleman-De Luccia semi-classical vacuum decay theory with gravity is reviewed. 本文评述了Coleman-De Luccia半经典真空衰变理论。
- THE ADVANCE OF IHEORY OF BETA DECAY 衰变理论的提出
- What made the Roman Empire decay? 罗马帝国为何衰亡？
- Old civilization may fall into decay. 古老的文化可能会渐渐衰落下去。
- He tried in every way to verify this theory. 他想一切办法来验证这个理论。
- The empty house has fallen into decay. 那座空房已成一片颓垣。
- The tree exhibited signs of decay. 那棵树显示腐蛀的迹象。
- I entirely approve of that theory. 我完全赞成那种理论。
- Einstein put forward his new theory of relativity. 爱因斯坦提出了相对论的新学说。
- His mental decay is distressing. 他的智力衰退令人苦恼。
- Growth and decay are vital processes. 生长和衰亡是生命过程。
- The dentist could detect no decay in her teeth. 牙医检查了她的牙，未见有龋齿。
- This concept is at the very core of her theory. 这个概念是她理论的核心。
- Cavities in teeth are caused by decay. 牙齿的蛀洞是由蛀蚀造成的。
- Einstein's theory of relativity. 爱因斯坦的相对论。
- Practical experience belies this theory. 实际经验证明这个理论是错误的。
- Human remains, especially after cremation or decay. 骨灰人的遗骸，尤指在火化或腐烂后
- Her theory was quoted without an acknowledgement. 她的理论被人引用而未向她致谢。
