Reef-bank features of Permian Changxing Formation and Triassic Feixianguan Formation in the Daxian-Xuanhan Area, Sichuan Province, South China and constraint for the reservoirs of natural gas是什么意思_Reef-bank features of Permian Changxing Formation and Triassic Feixianguan Formation in the Daxian-Xuanhan Area, Sichuan Province, South China and constraint for the reservoirs of natural gas在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句