... heat light source 热光源 heat supply source 热源 plane heatsource method 平面热源测定法 ...
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She reflects the rays from the sun, the source of light and heat, the symbol of truth and knowledge.
而太阳才是光和热的源泉，是真理和知识的象征。
The sun is the only source of light and heat we need.
太阳是我们所需要的光能和热能的唯一源泉。
High quality light: no heat and radiation since there is no ultraviolet ray and infrared ray for the spectrum. It belongs to typical green lighting source.
光线质量高：由于光谱中没有紫外线和红外线，故没有热量，没有辐射，属于典型的绿色照明光源。
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