大地构造体系由李四光提出，指地球表层分布的各种“构造体系”；习惯上指地球表层那些大型或巨型的构造体系。
这一构造体系对中亚地区的大地构造研究具有重要的意义。
The suggestion of these three groups of PBF has significant meaning in the study of tectonic of mid-Asian area.
亚洲中部大地构造格局及地貌轮廓均以山盆体系为特征，所有封闭性盆地中都发育有尾闾湖。
The outline of geotectonic and geomorphology of the Central Asia is characterized by range and basin complex. All the closed basins develop tail-end-lake (or lakes).
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