Higher geothermal gradients and 5. Multiple trap styles.

地温梯度较高；5。油气圈闭类型多。

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Dawangbei area of Chezhen Sag had rich oil and gas, complex geologic framework and structural evolution caused the multiple trap types.

车镇凹陷大王北地区油气十分富集，复杂的地质结构和构造演化过程导致了该区圈闭类型十分丰富。

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Also, we don't want to fall into the trap of having multiple frames or scrolling div elements if we can avoid it.

而且，如果我们能够避免，我们绝对不想使用多个框架或滚动div元素。

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