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铝是好的导体,怎么能做绝热材料呢?明白保温瓶胆镀银的道理就不奇怪了。70年代,热辐射学趋于成熟和工业发展的需要,人们才真正认识铝箔的高效绝热性。铝对太阳光的反射能力达90%而热辐射
Aluminium is a good conductor. How can we make thermal insulation? It is not surprising to understand that the thermos is silver-plated. In the 1970s, thermal radiation became more mature and industrial development needed. Only then did people really understand the efficient insulation of aluminum foil. Aluminum has a 90% reflection of sunlight and heat radiation