Huanghua depression belongs to the tensile basin in the Cenozoic era.
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2. 试验结果表明：板块状盐渍土属溶陷性土，随着含盐量的增大，溶陷系数增大；
The results show that the plate-like saline soil is collapsible soil, and the coefficient of collapsibility increases with the increase of the salinity.
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3. 临清坳陷东部第三系油气勘探几经反复，属低勘探程度的老区。
After exploration over and over again, the eastern part of Linqing depression in Tertiary became an old area with low exploration degree.
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4. 临清坳陷东部第三系油气勘探几经反复，属低勘探程度的老区。
After exploration over and over again, the eastern part of Linqing depression in Tertiary became an old area with low exploration degree.
