提高现有耕地单位面积产量有潜力。 译文：Increasing the yield per unit area on the existing cultivated land has potential.

问答题Wheel A turns twenty percent faster than wheel B.译文：A轮转动速度是B轮的20%。

问答题This plot is three times larger than that one.译文：这块地是那块地的三倍。

问答题New booster can increase the payload by 120%.译文：新型助推器能使有效负载增加到120%。

问答题Natural agricultural resources, production conditions, technical level and some other conditions ensure great potential in this respect.译文：自然农业资源、生产条件、技术水平和其他条件，保证在这方面有很大潜力。

问答题中共十七大