Adding a low-ratio concentrator to integral solar water heater is one of principal ways to improve its comprehensive technical-economic performances.
增加弱聚光系统是提高闷晒式太阳能热水器综合技术经济性能的主要途径之一。
Adding a low-ratio concentrator to integral solar water heater is one of principal ways to improve its comprehensive technical-economic performances.
增加弱聚光系统是提高闷晒式太阳能热水器综合技术经济性能的主要途径之一。
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