- 重点词汇
- synthesizedv.综合( synthesize的过去式和过去分词 );人工合成;（通过化学手段或生物过程）合成;（音响）合成;
- rawadj.生的;自然状态的;强大的;擦伤的;不熟练的;寒冷的;质朴的;
- act as担当…， 起…的作用;充;充当;为;
- magnesiumn.[化]镁（金属元素）;
- flame retardant阻燃剂;抑燃剂;滞燃剂;
- isvt.& vi. 是(be的三单形式);
- trichloriden.三氯化物;
- andconj. 和，与;而且;于是，然后;因此;
- 相关例句
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.
互联网摘选
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.
互联网摘选
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.
互联网摘选
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.
互联网摘选
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.
互联网摘选
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.
词典精选例句
In this discussion with Micah the wiry old captain tended to ignore his ineffective Son, Bromley.
在同弥迦谈这类事情时,精明的老船工有意忽略他的无能的儿子布朗利.
词典精选例句
The neighbours were professional people, most of whom daily commuted to London from Bromley Station.
邻居都是职员, 大部分人每天都从布郎利车站乘车到伦敦上班.
词典精选例句
方法: 以甲醇为溶剂,以对羟基苯乙酮和溴为原料制备了α - 溴-4-苄氧苯基苯乙酮.
互联网摘选
A method for the determination of 6-bromo-2-naphthol and 2-naphthol is described.
采用高效液相色谱法同时测定了6-嗅-2-萘酚和 2- 萘酚的含量.
互联网摘选
Objective: A new approach to prepare α-bromo-4-benzyloxy acetophenone was introduced.
目的: 报道一种合成α - 溴-4-苄氧苯基乙酮的新方法.
互联网摘选
