... conventional igniton system 传统点火系统 Conventional cost system 传统成本制度 Conventional marketing system 传统行销系统 ...
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That’s more than double EIA’s estimate of the total system levelized cost of wind, and almost four times the cost of conventional coal.
那是风能平准化成本的两倍，燃煤发电的四倍。
In conventional elevator controls, high accurate sensors of position and speed are used for this purpose. However these additional sensors increase the cost of system and decrease the reliability.
在传统的电梯曳引系统中，通常采用高精度的位置和速度传感器来检测转子的位置和速度信息，增加了系统的成本，降低了系统的可靠性。
In the last part, using the method of annual cost, the article made analysis of solar heating system and other conventional energy system in economy as well as environmental benefits.
最后利用费用年值法对太阳能采暖系统以及其他常规能源系统进行经济性分析与环境效益分析。
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