The advancement of material technology reduces the weight of auto, promotes fuel economic effectiveness, cut down the manufacturing cost.
由于材料技术的进步降低了车辆的重量，改善了燃油经济性，降低了车辆制造成本。
Based on the analysis on maize price and its fluctuation, this paper takes soybean as a reference to calculate the maize income opportunity cost and the technology advancement opportunity cost.
在分析我国玉米价格现状及波动态势的基础上，以大豆为参考，对玉米的收入机会成本及技术进步机会成本进行测算。
The changing logistic environment has led to the advancement of the cost accounting method in a logistics enterprise.
物流环境的变化引起了物流企业成本核算方法的改变。
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