以下为句子列表：
英文: Abstract: In the field of optical wireless links,concentrators that are designed by the tools of nonimaging optics can be used to collect the light radiation and are more compact and have higher collection efficiencies than imaging concentrators.Hemispher
中文: 文摘:在无线光通信领域,利用非成像光学设计的集中器能够聚集光辐射能量,而且相对于成像性集中器具有更紧凑的结构和更高的增益.利用光线追迹法对半球形集中器的性质进行了分析与研究.对好几种非成像集中器:半球形集中器,复合抛物线形集中器,介质内部全反射集中器,多表面集中器,多相介质集中器,从设计原理、增益和视场进行比较,并分析其应用场合.
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英文: Cold Light Therapy Apparatus of TL-A Series mainly uses acc-urate high-strength short-wave cold light radiation to kill pathogenic factors and harmful cells,activate helpful cells,and strengthen immune function of cells in local infected area,and thus ach
中文: 系列冷光源治疗仪主要用高强度的精确短波冷光源辐射杀灭致病因子和有害细胞，激活有益细胞并能增强局部病区细胞免役力，彻底达到治病防病的目的。
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英文: The mass-loss includes the light radiation and solar wind.
中文: 太阳质量损失包括光子辐射和太阳风造成的质量损失。
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