Chlorine has been used to disinfect water for consumption in the US since the early 1900's, leading to the virtual elimination of waterborne diseases and improved public health. It is extremely effective at killing pathogens and diseases, is inexpensive, easy to control and monitor, as well as ...
a他让我的水瓶每时每刻都被装满水 He lets my thermos all pack every time the water[translate] aI belive that you are a bad boy ,hurting my heart sometime... 您是一个坏男孩的I belive,某时损害我的心脏...[translate] acarries out
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doi:10.1111/j.1745-6592.1995.tb00532.xWiley Periodicals, Inc.Ground Water Monitoring & Remediation
chlorine- a common nonmetallic element belonging to the halogens; best known as a heavy yellow irritating toxic gas; used to purify water and as a bleaching agent and disinfectant; occurs naturally only as a salt (as in sea water)
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The crude chlorinated product is then washed neutral with water and distilled 相关内容 aafter the doctor looked him over carefully,he said to him well 正在翻译,请等待... [translate] a9) 相信你能夠完成你設定的目標 9) Believed you can 夠 achieve the goal which you establish[translate] ...
Although chlorine is now known to be a lung irritant and swimming pool water is generally chlorinated, it would be rash to assume that frequent exposure to chlorine is the explanation of the high incidence of asthma among these swimmers, since ___. 选项: 答案: D 提问列表 提问 提问: 错...
Needs to be dechlorinated Variable parameters 2. Well water Well water is untreated groundwater that is piped into your home. It can be hit or miss whether your well water is suitable for your aquarium. Unlike tap water provided by your local water supply, the government does not test the...