Lighting has been shown to have effects on mood in the physical world (both sunlight and artificial light; see lots of info on the subject).
已有研究表明，照明可以影响情绪(日光和人造光线)。
Excellent tunnel lighting project, should have excellent lighting effects, convenient maintenance, steady power supply and reasonable control.
优秀的隧道照明工程，应具有优良的照明效果、便捷的维护、稳定的供电、合理的控制。
If blue light does have adverse health effects, then environmental concerns, and the quest for energy-efficient lighting, could be at odds with personal health.
如果蓝光确实对健康有不良影响，那么环境问题，和对节能照明的需求，将对个人健康产生冲突。
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