单词：benzene insoluble
单词：benzene insoluble 相关文章
This is Scientific Americans 60-Second Science. Im Sophie Bushwick. Got a Minute? What's the best way to find out if an unknown mixture contains a specific substance, like an environmental contaminant? You could use an expensive, bulky gas chromatogr
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bend,v 使弯曲＝crook 【例】The road bends here 路在这里转弯。 【类】bend:rigid＝submerge:buoyant＝dissolve:insoluble刚性的不会弯曲＝有浮力的不会沉没＝不能溶解的不会溶解
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Indoor air pollution is a common threat to human health, the new study looked at five common house plants and found that when it comes to removing harmful chemicals from the air, those five plants are better than others. 室内空气污染对人类健康
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本期内容： A humble houseplant with a dash of rabbit DNA could help lower our exposure to indoor air pollution, new research suggests. Scientists have revealed that by inserting a rabbit gene into devils ivy the plant is able to clean the surrou
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