Dongying sag is a dustpan shape one with very abundant oil and gas.
东营凹陷是一个含油气十分丰富的箕状断陷凹陷。
Carriage body has dustpan shape and rectangle shape. It has such advantages as high strength, strong lift and stable performance etc.
厢体有簸箕形和矩形两种，具有强度高、举升力强、不变机能好等特点。
Carriage body has dustpan shape and rectangle shape. It has such advantages as high strength, strong lift and stable performance etc.
厢体有簸箕形和矩形两种，具有强度高、举升力强、不变机能好等特点。
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