- 重点词汇
- alreadyadv.早已，已经;先前;
- the world世界;
- were be的过去时复数和第二人称单数形式;有时代替 was,用于条件从句、动词 wish 之后等;
- theypron. 他/她/它们;人们，大家;政府，当局;她们;
- alternativesn.选择的余地( alternative的名词复数 );可供选择的事物;取舍;非传统（或他择性）生活方式的追随者（或鼓吹者）;
- farmersn.农场主，农民( farmer的名词复数 );
- alsoadv.也;同样;并且;
- bromiden.溴化物;溴化物镇静剂;安眠药;陈词滥调;
- usingv.使用（ use的现在分词 ）;利用;耗费;吸（毒）;
- toprep. 向，朝着;到;关于;属于;
- throughoutprep. （表示时间）自始至终;在…期间;遍及…地域;遍及…场所;
- 相关例句
Molten lead ( II ) bromide contains mobile ions which conduct electricity.
熔融的溴化铅 ( II ) 具有游动离子,帮助传电.
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The method of determination methyl bromide in fumigation progress was developed by GC 5000 A.
探讨了气相色谱法测定熏蒸处理过程中溴甲烷浓度的检测方法.
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By adding various dyes to the silver bromide it can be made additionally sensitive green light.
溴化银加入各种化学增感剂后,又可使其感受染色光.
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The molluscacidal medicated additive is bromoacetyl bromide or niclosamide.
所述的灭螺药物添加剂为溴乙酰胺或氯硝柳胺.
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在焙烤过程中, 不用通过面粉各组分的溴化作用,溴酸盐也会全部彻底地还原成溴化物.
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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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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.
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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.
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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.
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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.
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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.
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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.
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