撤换他们吧,接替的也许更不中用.The men who would replace them would probably be even worse.石油枯竭后可接替的液体燃料是什么?After Petroleum is Gone, What Then?惠民南斜坡是胜利油田油气资源接替的新探区.The southern slope of Huimin is a new exploration area for replacement ...