第四纪自然环境的形成和演变是第四纪地质史研究的中心环节。
The formation and evolution of Quaternary natural environment is the key link of Quaternary geological study.
利用水流能量指数，分析了洞庭盆地第四纪沉积环境的演变特征。
The evolution of sedimentary environment in the Quaternary in Dongting Basin is analyzed by using the flow energy index.
利用水流能量指数，分析了洞庭盆地第四纪沉积环境的演变特征。
The evolution of sedimentary environment in the Quaternary in Dongting Basin is analyzed by using the flow energy index.
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