The dark mudstone of Neogene System in Sikeshu Sag of Junggar Basin is a potential source rock with vitrinite reflectance (R(subscript .是什么意思_The dark mudstone of Neogene System in Sikeshu Sag of Junggar Basin is a potential source rock with vitrinite reflectance (R(subscript .在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句