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unalloyed    音标拼音: [ən'æl,ɔɪd]
a. 未搀杂的,纯粹的,真正的,非合金的

未搀杂的,纯粹的,真正的,非合金的

unalloyed
adj 1: free from admixture; "unalloyed metal"; "unalloyed
pleasure"

Unalloyed \Un`al*loyed"\ ([u^]n`[a^]l*loid"), a.
Not alloyed; not reduced by foreign admixture; unmixed;
unqualified; pure; as, unalloyed metals; unalloyed happiness.
[1913 Webster]

I enjoyed unalloyed satisfaction in his company.
--Mitford.
[1913 Webster]


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  • Water pollution - Wikipedia
    Water pollution (or aquatic pollution) is the contamination of water bodies, with a negative impact on their uses [1]: 6 It is usually a result of human activities Water bodies include lakes, rivers, oceans, aquifers, reservoirs and groundwater Water pollution results when contaminants mix with these water bodies
  • Water pollution in the United States - Wikipedia
    Nonpoint source pollution occurs when the contamination derives from multiple different sources This type of pollution is very challenging to manage given that the original source (s) may be difficult to identify [16] Nonpoint source pollution is the most common type of pollution because as rainfall runs off of land on its path to different water sources, it becomes contaminated by
  • List of pollution-related diseases - Wikipedia
    This is in part because pollution causes so many diseases that it is often difficult to draw a straight line between cause and effect There are many types of pollution-related diseases, including those caused by air pollution, contaminated soil, water pollution and lacking water, sanitation and hygiene (WASH) Air pollution can be reduced
  • Human impact on river systems - Wikipedia
    The most common types of surface water pollution are agriculture, sewage and waste water (including stormwater runoff), oil pollution and radioactive substances [7] The agricultural sector consumes a lot of fresh water and is the leading source for water degradation [7]
  • Pollution - Wikipedia
    Major forms of pollution include air pollution, water pollution, litter, noise pollution, plastic pollution, soil contamination, radioactive contamination, thermal pollution, light pollution, and visual pollution [2] Pollution has widespread consequences on human and environmental health, having systematic impact on social and economic systems
  • Groundwater pollution - Wikipedia
    Pollutant types Contaminants found in groundwater cover a broad range of physical, inorganic chemical, organic chemical, bacteriological, and radioactive parameters Principally, many of the same pollutants that play a role in surface water pollution may also be found in polluted groundwater, although their respective importance may differ
  • Marine pollution - Wikipedia
    Different types of marine pollution can be grouped as pollution from marine debris, plastic pollution, including microplastics, ocean acidification, nutrient pollution, toxins, and underwater noise
  • Nonpoint source pollution - Wikipedia
    Types of nonpoint source water pollution include sediment, nutrients, toxic contaminants and chemicals and pathogens Principal sources of nonpoint source water pollution include: urban and suburban areas, agricultural operations, atmospheric inputs, highway runoff, forestry and mining operations, marinas and boating activities





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