;But the reservoirs of coastwise bar, lacustrine bay sandstone and shore sand occur in each tract.
而
坝、滩砂、湖湾砂等油气藏分布于各个体系域。
着海
,
,But the reservoirs of coastwise bar, lacustrine bay sandstone and shore sand occur in each tract.
而坝、滩砂、湖湾砂等油气藏分布于各个体系域。
The article takes the cities along coastwise of Xiangjiang River such as Yongzhou, Hengyang, Xiangtan, Changsha and Yueyang as its research object.
绪论部分，主要就选题
学术
义和
义进
了说明；
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