There isn't a guidance method of evaluating luminous efficacy of light sources on road lighting yet resulted in the problem has not been solved at present.
由于目前国内尚缺乏定量地评价道路照明光源相对光效的指导方法，导致此问题一直悬而未决。
The solution for such problems will propose a theoretic guidance to urban light-scape design and lighting environment development in China.
对这些课题的深入研究和最终解决，将为我国的城市灯光景观和灯光环境建设提供理论上的指导。
Welcome friends to visit Yan Cheung Lighting Equipment co., Ltd., guidance and business negotiation.
欢迎各界朋友来到欣翔灯光设备有限公司参观、指导和业务洽谈。
Welcome friends from Guangzhou Kalai Pu Automotive Lighting Factory visit, guidance and business negotiation.
欢迎各界朋友莅临广州卡莱普汽车灯饰厂参观、指导和业务洽谈。
Welcome friends, Zhongshan City, Trump Digital Technology Lighting co., Ltd. visit, guidance and business negotiation.
欢迎各界朋友莅临中山市创普数码科技照明有限公司参观、指导和业务洽谈。
The 'self ie' phenomenon is so widespread that it was only a matter of time before courses started offering guidance on the most flattering angles and lighting.
如今，自拍已经成为一种潮流，所以设立传授最佳拍摄角度和用光技巧的自拍课程是迟早的事情。
Lighting systems in working offices, lit by electric lighting and daylight guidance, were surveyed.
对采用电力照明和日光传导照明的办公室的照明系统进行了调查。
Lighting systems in working offices, lit by electric lighting and daylight guidance, were surveyed.
对采用电力照明和日光传导照明的办公室的照明系统进行了调查。
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