例句與造句

1. 2 . the new idea about classification of oil and gas accumulation unit for exploration have been put forward, which holds the sound basis for the perpendicular and plane position and prediction of carbonate reservoir in feixianguan guan group . 3 . the depositional systems of feixianguanguan group in taphrogenic consist of carbonate platform facies ( include oolitic bar, oolitic beach, lagoon, flats ), margin shelf and trough . there are five development staged in taphrogenic trough
   3、指出裂陷槽中飛仙關(guān)組沉積體系在平面上由碳酸鹽巖臺地相(包括灘壩相、鮞灘相、瀉湖相、潮坪相)、陸棚相、裂陷槽相組成，裂陷槽經(jīng)歷了發(fā)生期、發(fā)展期、穩(wěn)定期、過渡期及衰亡期五大發(fā)展演化階段，每一階段各發(fā)育不同的沉積相，且以一種沉積相為主。
2. It's difficult to find accumulation unit in a sentence. 用accumulation unit造句挺難的