Datianchi structural belt situates in high and steep district where subterranean forms are complicated,and the formation dip angle is large, with lots of payzones.是什么意思_Datianchi structural belt situates in high and steep district where subterranean forms are complicated,and the formation dip angle is large, with lots of payzones.在線翻譯_英語_讀音_用法_例句