High density electrical method and seismic imaging method are adopted to detect the mined-out areas in the Gongchangling opencut iron mine in Liaoning Province.是什么意思_High density electrical method and seismic imaging method are adopted to detect the mined-out areas in the Gongchangling opencut iron mine in Liaoning Province.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句