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前不久,国外市场上出现了一种能象磁铁吸引铁屑一样吸引灰尘的掸子。当给这种掸子通上了电流时,其每根毛上便都带上了电荷,灰尘颗粒即会逐个附着在掸子表面。掸子上灰尘积多了,可以用肥皂水洗掉。它最适用于除去一些易于损坏的物品上的灰尘,如工艺品、油画、书籍等。
Not long ago, there appeared a foreign duster that attracts dust like a magnet attracts iron filings. When the current is applied to the dusters, the electric charge is applied to each of the dusters, and the dust particles attach to the surface of the dusters one by one. The dust on the duster is high, so wash it off with soap and water. It is best used to remove some of the easily damaged items on the dust, such as handicrafts, paintings, books and so on.