这款3ds游戏机长期看来可能会有带动3d电视需求量增加的好奇效应，但在短期内反而会使3d电视需求减少。
The 3ds May thus have the curious effect of boosting demand for 3d TVs in the long term, but depressing it in the short term.
介绍将系统动力学方法运用于电力需求量的中长期预测中。
The system dynamics are applied in the medium long term electric power demand forecasting.
能源需求与经济增长之间存在着长期均衡关系，能源消费弹性系数为0.58，即经济增长每增加1%，对能源的需求量将增加0.58%。
Elasticity coefficient of energy consumption is 0.58. That is to say, if the value of economic growth increases by 1 percent, the energy consumption would increase by 0.58 percent.
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