The processing of shallow seismic data in plain area shows its very good effect.
对平原地区浅层地震资料的处理表明，效果十分明显。
In plain area, crop farming is the main form of the whole agricultural production.
在平原地区，种植业是整个农业生产的主要内容。
The middle south plain area is the main area of coal exploitation in Shandong Province.
鲁中南地区是山东省煤炭资源开发的重点地区。
The middle south plain area is the main area of coal exploitation in Shandong Province.
鲁中南地区是山东省煤炭资源开发的重点地区。
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