Pingbei Area Ansai Oilfield has geological specialties of the low-permeability and low-production, and the complex ground conditions.是什么意思_Pingbei Area Ansai Oilfield has geological specialties of the low-permeability and low-production, and the complex ground conditions.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句