But solar energy photovoltaic power cost is high and its conversion efficiency is low.
但太阳能光伏发电存在成本较高和能量转化效率较低的问题。
This device is characterized by its small size, light weight, high efficiency and low cost.
这种器件的特点是体积小，重量轻，效率高，成本低。
The high efficiency of human eye's information obtain comes from its attention mechanism.
人眼的注意力机制保证了人眼信息获取的高效性。
Its advantages are low resistance and high breaking-off power and efficiency.
本发明具有阻力小、破碎能力强、破碎效率高的优点。
Its advantages are high drive efficiency, soft start of electric motor, and overload protection.
本偶合器传动效率高，可实现电动机软启动，过载保护。
Its advantages are high efficiency and safety, low cost and high mechanization level.
它具有效率高、安全卫生、机械化程度高、成本低的优点。
Its pulverization efficiency is high.
粉碎效率高。
Not only is this method high efficiency, but also its applicable scope is wide.
因而不但热效率高，而且应用面广。
This method is characterized by its low operation cost, high efficiency and accuracy.
一般的人脸特征提取方法都可以将该方法作为提高效率的预处理操作。
This method is characterized by its low operation cost, high efficiency and accuracy.
一般的人脸特征提取方法都可以将该方法作为提高效率的预处理操作。
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