The difference of economical performances between a Shanghai diesel powered and a CNG powered bus is investigated by using life cycle cost assessment method (prices in 2003).
利用生命周期成本评估方法对上海市柴油和CNG公交车的经济性能进行了评价（2003年价格）。
The difference of economical performances between a Shanghai diesel powered and a CNG powered bus is investigated by using life cycle cost assessment method (prices in 2003).
利用生命周期成本评估方法对上海市柴油和CNG公交车的经济性能进行了评价（2003年价格）。
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