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bromine

B 开头单词托福词汇

常见例句

  • The number of cationic bromine and chlorine compounds is restricted.
    溴、氯阳离子化合物的数量受局限.
  • Derivatives of bromine are much more active than the corresponding one of chlorine.
    溴的衍生物的活性要比相应的氯的衍生物大得多.
  • The existing bromine in acetic acid could aggravate corrosion on metal hole.
    醋酸中含溴会加剧金属孔蚀.
  • The number of cationic bromine and chlorine compounds is restricted.
    溴、氯阳离子化合物的数量受局限.
  • Derivatives of bromine are much more active than the corresponding one of chlorine.
    溴的衍生物的活性要比相应的氯的衍生物大得多.
  • The existing bromine in acetic acid could aggravate corrosion on metal hole.
    醋酸中含溴会加剧金属孔蚀.
  • Bromine can restrain central nervous system and avoid insomnia.
    溴:抑制中枢神经,有镇静作用,能防治失眠.
  • The preparation and catalytic properties of different bromine - free catalysts were discussed.
    溴蒽类催化剂的活性较低,相应的研究也较少.
  • Beryllium, bismuth, and bromine must be considered as well.
    少量的还包括还有铍 、 铋 、 溴.
  • Main product has bromine of chloride, industry, magnesium chloride to wait.
    主要产品有氯化钾 、 工业溴 、 氯化镁等.
  • Test standard samples of bromine number 0.
    以容量法测定溴值在0.
  • Magnesium mine, salt mine , Bromine mine, Piezoelectric Crystal.
    镁矿, 盐矿,溴矿, 压电水晶, 铸石用玄武岩.
  • A new method for determining the bromine content in brominated polystyrene was studied.
    提出了测定溴化聚苯乙烯中溴含量的方法.
  • A chemical compound containing two bromine atoms bound to another element or radical.
    叠氮原子团和一种元素或一种基结合形成的一种化合物.
  • The yield was higher using bromine The yield was higher using bromine than chlorine.
    用溴比用氯时产出率高.
  • Objective To observe the efficacy of bromine - containing disinfectant in on - the - spot disinfection of swimming pool water.
    目的观察含溴消毒剂对游泳池水现场消毒效果.
  • Synthesis of 2 - bromothiophene using thiophene and bromine and glacial acetic acid as solvent was studied.
    以冰乙酸为溶剂,通过噻吩和溴反应制备了 2- 溴噻吩,并探讨了诸因素对产率的影响.
  • Bromobenzene, magnesium , antimony trichloride and bromine act as raw materials, dibromotriphenylantimony flame retardant is synthesized.
    以溴苯、镁粉 、 三氯化锑、溴素为原料, 合成了二溴三苯基锑阻燃剂.
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