目前发现的油气藏均围绕生烃中心呈环状分布，油气藏的规模与烃源岩的排烃强度具有较好的正向相关性；
Secondly, the found oil and gas mainly circle around the hydrocarbon kitchen, and the scale of reservoirs was increased following the increase of the hydrocarbon discharge intensity of source rocks.
可吸收的6，6-二烃基-1，4-二氧杂环庚烷-2-酮及其环状二聚物的共聚物和混合物。
Absorbable copolymers and blends of 6,6, -dialkyl-1,4-dioxepan-2-one and its cyclic dimer.
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