Large scale solar installations are usually in sunny, dry desert areas where winds can deposit layers of dust over the solar panels.
大规模的太阳能装置通常安装在阳光充足、气候干燥的沙漠地区，太阳能电池板上会被风吹上层层的灰尘。
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Standing about 15 minutes (if floats, can be placed in a water bath heating Clay oven rolls, the sink), and then the deposit will be moved to the crucible clean and dry.