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漫话灰尘王兆军灰尘是大气的“合法”成分，数量巨大。我国国国土一年中飘落下的灰尘有４．３×１０７ｔ，平均每个中国公民３６ｋｇ。灰尘颗粒细小。我们平常在暗室中见到的在一束阳光中飘浮的灰尘，是灰尘家族中的庞然大物，大多数的灰尘直径只有１μｍ左右，肉眼是无法...
Scraping Dust Wang Zhaojun’s dust is the “legal” component of the atmosphere and is huge in quantity. The dust falling in China during the year is 4.3×107 tons, which is 36kg per Chinese citizen. Dust particles are small. The dust that we normally see in the darkroom floats in a beam of sunlight. It is a giant in the dust family. Most of the dust is only about 1μm in diameter, and the naked eye cannot...