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- Up until now, research about PCF has been made, which, however is still in a stage of theory exploration, and is far away from preparation of PCF. 目前，国内已有单位对光子晶体光纤进行研究，但是，一般都处于理论探索阶段，对于光子晶体光纤的制备更是鲜有报道。
- The theory explores the connections between the form and meaning of language, so as to explain the relationship between language and the system of human cognition. 该理论从认知科学的角度，探讨语言形式与语言意义的表述关系，目的在于解释语言与认知系统之间的联系。
- The paper researched the problems of Rongchang industry and economy according to the theory of enterprise strategic management, which contained theory explorations, as well as practical meaning. 论文运用企业战略管理理论, 研究荣昌县域工业经济问题,既有理论探索,又有现实意义。
- 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。
- 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。
- His theory is not intelligible to us. 他的理论我们无法理解。
- The pith of that theory is serving for people. 那个理论的精髓是为人民服务。
