At present, the researches focus on the study of the relationship between phonological changes and climate change.

目前对物候学的研究方向主要集中在探讨物候与气候变化之间的关系。

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Ecology, the study of the relationship between living organisms and their environment, is also important in petroleum geology.

生态学，即研究生物与其环境之间关系的科学，在石油地质中也很重要。

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The study of the relationship between fractal dimension and petroleum engineering parameters is of practical significance.

研究分维与石油工程参数的关系具有现实意义。

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The committe made the decision on the grounds that the painting was of outstanding significance for the study of the relationship between British and American painting in the 19th Century.

BBC: Rare Cropsey landscape in export bar

Here they will study the complexity of the relationship between conservation and sustainable development.

UNESCO: Montenegrin stakeholders benefit from knowledge-sharing during study tour to World Heritage sites and Biosphere Reserves in Italy and Austria | United Nations Educational, Scientific and Cultural Organization

The study underscores the importance of the telephone in our relationship with Mom.

CNN: Call your mother!