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。
Anslyzing energy efficiency of system and comparing conventional energy simply, The author put forward efficiency-cost ratio of project and pre-evaluation of payback time.
对系统能效分析及与常规能源简单对比，提出项目费效比与回收年限预评估。
Thus, compared with a conventional PSTN receiving system, the double-mode conference telephone saves a set of control modules and greatly reduces the cost.
这样相对于传统的PSTN接收系统，节省了一套控制模块，成本上有很大的降低。
Compared with conventional super heterodyne radar, it presents several advantages such as reduced system complexity, allowing a higher level of circuit integration and low cost.
六端口雷达与传统的超外差式雷达相比，结构简单，便于集成，成本低。
The airborne laser scan system for acquiring 3d terrain data directly is better than the conventional survey. There are the advantages of high precision, high density, and high efficient and low cost.
激光三维扫描技术可以直接获取地面三维数据，比传统测量方法具有高精度、高密集、高效率和成本低的优点。
The airborne laser scan system for acquiring 3d terrain data directly is better than the conventional survey. There are the advantages of high precision, high density, and high efficient and low cost.
激光三维扫描技术可以直接获取地面三维数据，比传统测量方法具有高精度、高密集、高效率和成本低的优点。
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