An electrically-sensitive material is deposited on glass or a plastic sheet that covers the panel. monitor the dust levels. Once the dust reaches a specified level, the system reacts and produces a charge, with electricity generated by the panel.
在覆盖电池板的玻璃或塑料片上沉积一种电敏透明材料,传感器监测灰尘等级,当灰尘达到额定等级时,系统发生作用,利用电池板所发电流产生一个电荷。
dust a large sheet of greaseproof paper with icing sugar and turn out the roulade on to it. peel off the lining.
撒糖霜在一大张防油纸上,倒出蛋糕,剥落衬纸。
...a blue-grey sheet of dust.
一层蓝灰色的灰尘
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