Zhongyuan oilfield conducts a study on innoxious treatment of wasted drilling fluid to eliminate the contamination to soil and underground water source.是什么意思_Zhongyuan oilfield conducts a study on innoxious treatment of wasted drilling fluid to eliminate the contamination to soil and underground water source.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句