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做了一个室外保鲜(暖)盒,不知道为什么保温效果不好?
xiaozuiba
(xiaozuiba)
5面为R值8-9保暖材料,底面是在水泥地上放了2块塑料垫.西晒.今天早上8度气温是开始密封实验,结果下午5点时里面的温度是20.2度,同时室外气温为17度.这多出来的3度是哪里来的?地暖?
(#12376911@0)
Last Updated: 2019-10-8
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