陆上油田an onshore oil field保护油田者有奖.Those who protect the oil field will be rewarded.新油田的含油层结构已经探明.The oil - bearing structure of the new oil field has been verified....
一缕轻烟在林间袅袅升起。A thin wisp of smoke straggled up through the trees.烟从烟囱里袅袅升起。Smoke was curling up the chimney.棕黄色的烟雾冒出来，袅袅升起。The yellowish brown smoke fumed up and swirled....