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- The externality theory is a basic theory of explaining economy activities and forest ecological environment problems. 摘要本外部性理论是解释经济活动与森林生态环境问题的基础理论。
- The paper analyzes the ways and mechanism of externality of green consumer behavior based on the externality theory of economics. 摘要本文运用经济学中的外部性原理，分析消费者购买绿色产品行为的外部性表现形式和形成机制。
- The externality theory of economics points out that the agricultural functions include product offer, employment offer, welfare guarantee and leisure. 经济学的外部性理论，指出农业具有产品贡献、就业贡献、社会安全保障和休闲等功能。
- The paper, first using externality theory, by cost-revenue relation model, analyzes main reasons that the scenic operator doesn't protect spot. 摘要首先利用外部性理论，通过成本与收益的关系模型，分析了经营者不愿对景区资源实施保护的原因。
- On the basis of externality theory, methods of internalization of external economic nature of historic blocks are put forward in order to enhance protection level of historic blocks and development of external economic nature. 以外部性理论为基础，提出了历史街区外部经济性内部化的方法，以期提高历史街区的保护水平，促进街区外部经济性的发挥。
- Based on externality theory, the paper proposes the methods of internalization of external economy of a historic district in order to enhance conservation level of the historic district and promote external economies. 文章以外部性理论为基础，提出历史街区外部经济性内部化的方法，以期提高历史街区的保护水平，促进街区外部经济性的发挥。
- Despite Coase's Theorem's limitations,it facilitates the in-depth discussion about the thesis impersonally,which makes an important contribution to the development of externality theory. 尽管科斯定理有其自身局限性,但在客观上推动了外部性的深入探讨,为外部性理论的发展作出了重要贡献。
- Based on the externality theory, only when the social benefit from environmental regulation over the social cost, that means government regulation is more efficient than the market failure. 摘要根据外部性理论，只有当实施环境管制政策的社会收益大于社会成本时，才意味著政府管制相对于市场缺失是更有效率的。
- 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。
