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- We describe the “second quantized” Dirac theory in an (unquantized ) strong external field. 我们描述一种（非量子化的）强外场中“二次量子化”狄拉克理论。
- The stationary state of hydrogen atom described by Dirac theory has a simple characteristic. That is the values of quantum number n and j of the energy level are decided,but that of l can be different. 指出狄拉克理论描述的氢原子定态;具有量子数nj值确定;而l值可以不同的能级简亻并特征.
- Based on the perturbation theory, the fine structure formula of hydrogen energy level is deduced. It accords with the result of experiments and the conclusion drawn by Dirac theory. 本文用微扰论方法;推导氢原子能级精细结构公式;其结果同用狄拉克(Dirac)理论的推导结果相一致;均与实验相符合.
- Ambiguity of Perturbative Dirac Theory 微扰Dirac理论的含混性
- He tried in every way to verify this theory. 他想一切办法来验证这个理论。
- 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。
- This concept is at the very core of her theory. 这个概念是她理论的核心。
- 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。
- Her theory was quoted without an acknowledgement. 她的理论被人引用而未向她致谢。
- Dirac was unwilling to discard his equations. 狄刺克不愿意抛弃他的方程。
- Einstein's theory marked a new epoch in physics. 爱因斯坦理论开创了物理学的新纪元。
- For several years his theory held the field. 几年来他的理论一直保持着权威地位。
- Could you elaborate on this theory? 请你阐述这一理论，行吗？
- Do you agree to the wave theory of light? 你同意光的波动理论吗？
- Only in 1687 did he at last publish his new theory. 终于在一六八七年他发表了他的新理论。
- That seer is famous for his theory. 那个预言家以他的理论而出名。
- In sum, theory must be combined with practice. 总之，理论必须同实践相结合。
- Marketing: Marketing theory, sales management. 市场学：市场学理论、营销管理。
