ass日本风韵熟妇pics男人扒开女人屁屁桶到爽|扒开胸露出奶头亲吻视频|邻居少妇的诱惑|人人妻在线播放|日日摸夜夜摸狠狠摸婷婷|制服 丝袜 人妻|激情熟妇中文字幕|看黄色欧美特一级|日本av人妻系列|高潮对白av,丰满岳妇乱熟妇之荡,日本丰满熟妇乱又伦,日韩欧美一区二区三区在线

A combined system driven by solar energy and used in vegetable growth and distribution center was designed. This combined system used solar energy as the assistant heat source, water and CO2 as the working fluid. It can provide fit temperature environmental space needed by many different locations such as vegetable growth, pick, wash, pre-cooling, cooling storage (or quick freeze and frozen storage). By calculation and analysis to the combined system driven by solar energy and used in four representative areas selected in China, and the comparison between the combined system driven by solar energy with that driven by full-electricity, the results were obtained. They show that the performances of the combined system driven by solar energy in different areas have obvious differences. In Guangzhou area, the combined system driven by solar energy saved about 69.6% of electricity and the running cost in a year due to the higher environmental temperature. In Lanzhou area, the combined system driven by solar energy economized about 60% of the electricity and running cost in a year owing to the higher solar radiation intension, and in Urumchi area, the combined system driven by solar energy can also reduce about 49.2% of electricity and running cost in a year. However, even though the lower environmental temperature and solar radiation intension in Beijing area, still the electricity and running cost consumption of the combined system driven by solar energy reduced by 7.8% all year round too.