alum
英 [ˈæləm]
美 [ˈæləm]
n. 明矾，白矾(用于制革、印染等)
复数：alums
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)
- a person who has received a degree from a school (high school or college or university)
- a white crystalline double sulfate of aluminum: the potassium double sulfate of aluminum
- a white crystalline double sulfate of aluminum: the ammonium double sulfate of aluminum
双语例句
- 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。 - 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。 - 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）。 - 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。 - The current rectification is like a dose of alum.
这次整风，就是放一把明矾。 - Ultimately, this alum left the company.
最后，这位校友离开了那家公司。 - Once, when my mother administered powdered alum to my sore throat, I concluded that my family must have had enough of me.
曾经当我妈妈将粉末状的明矾放入我疼痛的喉咙时，我甚至断定我们家不想要我了。 - 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。 - Alum: White crystals, soluble in water. Used for sizing paper.
明矾：可溶于水的白色晶体。纸张施胶的材料。 - 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。