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Water
Water is a chemical compound with the chemical formula H20. A water molecule contains one hydrogen atom and two oxygen atoms. Water is a liquid at standard ambient temperature and pressure though it can be a solid (ice)in low temperatures or evaporate into water vapor a higher temperatures.
Industry: Natural environment
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Water
氟碳化合物 (fcs)
Natural environment; Water
任何數目的有機化合物類似于在哪一個或更多的氫原子被替換由氟的碳氫化合物。用於在美國作為推進劑國內氣溶膠，一旦他們現在發現主要在冷卻劑和一些工業生產過程中。FCs 含氯被稱為含氯氟烴 （CFCs）。他們被認為會修改臭氧層的平流層，從而使更多有害的太陽輻射到達地球表面的 ...
