abandoned well短语¹³¹⁶²⁰⁺³ 基本例句 报废油井 能源勘探 Casing window and sidetrack drilling is an effective measure in improving the oil recovery ratio by using abandoned well hole to dredge up the oilfield potential. 套管开窗侧钻是一种有效利用油田老井眼,深入挖掘油藏开发潜力,进一步提高采收率的钻井技术。 chemyq One day a farmer's donkey fell into an abandoned well. 一日,农夫的驴子掉进了一口枯井里。 tingroom