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1．透明顶盖和温室效应：阳光温室的顶盖是透过太阳光的主要（当南墙有窗时）或唯一途径。温室的设计原理简单讲就是应使通过透明顶盖进入温室的太阳辐射能量尽量地多，同时使通过温室六个面向外散失的能量尽量地少。只有透明顶盖同时肩负这双重任务。前者要求温室顶盖使用的透
1. Transparent roof and greenhouse effect: The roof of a solar greenhouse is the primary (when there is a window in the south wall) or the only way through the sunlight. The design principle of the greenhouse is simply that the solar radiation energy entering the greenhouse through the transparent roof should be as much as possible while minimizing the energy lost through the greenhouse’s six faces. Only transparent top cover at the same time shouldering this dual task. The former requires the use of greenhouse roof through