In the research area, the coal series in late Palaeozoic era were mainly formed from epeiric sea - coastal plain environment.
研究区晚古生代含煤岩系主要形成于陆表海—海岸平原环境中。
In the research area, the coal series in late Palaeozoic era were mainly formed from epeiric sea - coastal plain environment.
研究区晚古生代含煤岩系主要形成于陆表海—海岸平原环境中。
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