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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

              • Ultimately, this alum left the company.
                最后,这位校友离开了那家公司。
              • 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。
              • Yet success can breed bad habits& a point several Microsoft alum hammered home.
                但是,几名前微软员工反复强调,成功也往往会滋生出恶习。
              • Mix 8 grams of alum with 7 grams of cream of tartar in a small amount of hot water.
                将八克明矾和七克的酒石混合在少量的热水中。
              • 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。
              • 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。
              • When the dyeing liquid containing sodium sulfate, alum, lime and iron salts, etc., must be added chelating agent.
                当印染液中含有硫酸钠、明矾、石灰和铁盐等,必须加入螯合剂。
              • To make a sapphire crystal, the basic material used is a salt cleansed from any foreign body ( ammoniacal alum).
                蓝宝石水晶玻璃的主要原料是一种经过洗涤后除去了所有异物的盐(氨明矾)。
              • Experimental study on phase change material for thermal energy storage based on ammonium alum;
                蓄热炉替代换热炉在我国已有十几年了,究竟节能与否值得探讨。
              • The water purification technology by two grade direct ceramic particle filtration automatic alum feeding-micro flocculation is used to treat the low turbidity water in Zhongxin, Zengcheng, China.
                采用自动投矾-微絮两级陶粒直接过滤净水工艺,对增城中新低浊水源水进行试验。