古生界非构造圈闭是大型油气田的主要圈闭类型；

Paleozoic non-structural trap, which is the main trap type of large oil and gas fields;

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古生界非构造圈闭是大型油气田的主要圈闭类型；

Paleozoic non-structural trap, which is the main trap type of large oil and gas fields;

youdao