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首页 > 英语培训 > 化工英语基础培训答案

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大嘴闯天下

已采纳
1. 原子包含一个很小的带正电的原子核,靠静电吸引周围环绕着带负电的电子。当化学键形成时,电子的运动发生改变但原子核不发生变化。2. 原子靠化学键中的电负性吸引电子。不同数值概数会形成质的趋向(*)。元素周期表中电负性从左到右增强。低电负性的元素被称为正电性,正电性元素形成金属晶体,电负性元素会通过共价键形成分子或聚合物。3. 对于分子中的电子分子轨道为波函数,分子轨道通常由与原子轨道相似的线性组合组成。重叠的原子轨道可以产生成键和反键分子轨道。成键分子轨道中的电子在原子核内区域内的概率增大。 1. The chemical formation process of rusty is not quite clear,but it's sure that rust is ferrihydrite combined by oxygen and moisture. Meanwhile,the rusting accelerate obviously for the existence of carbon dioxide。2. Although the saturated hydrocarbon can react as the halogenatingreaction,its whole chemical reactivity is relatively low ,in comparation with which,it is easier to realize addition reaction for unsaturated hydrocarbon and substitution reaction for aromatic compounds.3. Henry's Law can give a discription of the relationship between partial pressure and solubility in the solution of gas solute that they are in direct proportion.4. It's on account of the differences in affinity between each component in the solution of separated substance and the stationary phase and mobile phase that chromatography can separate different components。5. Distill is the most widely used method to separate and purification for liquid organics,including vacuum atmospheric distillation、distillation、steam distillation and fractionation. 本着负责的态度认真的翻译了下,标有(*)的那句拿不太准,希望可以帮到你,累cry,对我的译文予以采纳哦~

化工英语基础培训答案

275 评论(15)

年轻就要耍大牌

每个热电偶由MgO绝缘16至20 AWG K型thermocoupleelement由特殊限制容差(±0.4%)热电偶合金护套内。该热电偶套管外露端应用环氧树脂密封,以防止水分渗入。

296 评论(15)

秀之美--艳梅

每个热电偶应由一个采用氧化镁绝缘16到20AWG K型热电偶原件组成,这个热电偶原件在鞘里面由特殊极限公差(±0.4%)的热电偶合金制造而成。暴露在外面的热电偶鞘的端头应用环氧树脂来做好密封,以防止水分的进入。望采纳。

345 评论(8)

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