地磁埸的成因是地球物理学的重大理论难题之一。

Formation cause of geomagnetic field is one of the important difficult problems of geophysics.

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土-结构相互作用是一个具有重大理论意义和工程应用价值的课题。

Soil-structure interaction is an important subject with great theoretical significance and application value of engineering.

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垄断企业网络外部性产品定价策略的博弈分析具有重大理论价值和现实意义。

It is theoretic and realistic for the game analysis on monopolist on pricing strategies of network Externalities products.

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So while again, what we read for today is not in itself literary theory, it is nevertheless crucially formative for a great many of the developments in literary theory that we'll be studying.

再重申一遍，我们今天读到的并不是文学理论，但是对于文学理论,的发展却又有重大贡献。

耶鲁公开课 - 文学理论导论课程节选

You remember in the first lecture I said there's a difference between the history of criticism and theory of literature, one difference being that the history of criticism has a great deal to do with literary evaluation: that is to say, why do we care about literature and how can we find means of saying that it's good or not good?

你们还记得吗，第一节课我说过,文学评论历史和文学理论有一个重大区别，那就是文学评论的历史,很大程度上与文学评估有关：,意思就是我们为什么要关心文学,还有我们怎么能说一部作品是好还是坏？

耶鲁公开课 - 文学理论导论课程节选