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alum

英 [ˈæləm]

美 [ˈæləm]

n.  明矾,白矾(用于制革、印染等)

复数:alums 

化学

BNC.28085 / COCA.17889

牛津词典

    noun

    • 明矾,白矾(用于制革、印染等)
      a substance formed from aluminium/aluminum and another metal, used, for example, to prepare leather and to change the colour of things

      英英释义

      noun

      • a double sulphate of aluminum and potassium that is used as an astringent (among other things)
        1. a person who has received a degree from a school (high school or college or university)
            Synonym:alumnusalumnagraduategrad
          1. a white crystalline double sulfate of aluminum: the potassium double sulfate of aluminum
              Synonym:potassium alumpotash alum
            1. a white crystalline double sulfate of aluminum: the ammonium double sulfate of aluminum
                Synonym:ammonia alumammonium alum

              双语例句

              • Conclusion: Alum and dried alum have significant bacteriostatic effect in vitro.
                结论:白矾及枯矾在体外有明显的抑菌作用。
              • Objective: To explore the bacteriostatic effect of alum and dried alum in vitro.
                目的:探讨白矾及枯矾体外抑菌作用。
              • The second is the only flour, but it soon died because of the excessive amount of flour Lishan alum.
                第二只吃的是面粉,然而它也很快死了,因为面粉里掺了过量的明矾。
              • Simply, the hydrate is a compound containing water molecules and secondary school textbooks mentioned on the alum, gypsum, and blue vitriol, are the most famous hydrate.
                简单地来说,水合物是含有水分子的化合物,中学课本上提到的明矾、石膏和蓝矾等,都是最著名的水合物。
              • Drop a little alum into the water and you can see to the bottom.
                一把明矾放下去,就看见了底。
              • Tap water disinfect system, alum adding system, new sewage disposing technology, monitor system optimize configure.
                自来水系统,加矾系统,污水处理新技术,监测系统的优化配置。
              • The main mineral resources in the territory there is iron ore, potash feldspar, sodium feldspar, limestone, quartz stone, phosphate rock, aluminum alum with disabilities, go home and so on.
                境内矿产资源主要有铁矿石、钾长石、钠长石、石灰石、石英石、磷矿石、铝矾士、去母等。
              • Sedimentation: after the addition of coagulant and the mixture reaction, colloid impurities in water coagulate into larger alum grains, which are further removed from the sedimentation tank.
                沉淀:原水加混凝剂后,经过混合反应,水中胶体杂质凝聚成较大的矾花颗粒,进一步在沉淀池中去除。
              • Blue vitriol, ie copper sulphate Alum will settle turbid water.
                胆矾(五水硫酸铜).明矾可以澄清浊水。
              • Ethyl decanoate was synthesized from capric acid and ethanol by using ferric potassium alum as catalyst.
                以铁钾矾为催化剂,通过葵酸与乙醇反应合成了癸酸乙酯。