Second-hand contains carbon monoxide, ammonia, formaldehyde a pyrene and nitrosamines.
二手烟包含了一氧化碳, 氨, 甲醛,苯和亚硝胺.
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This product with Br 2 was obtained 2-bromo-4,5-hydroxymethoxybenzaldehyde through bromination.
再溴代得到2-溴 -4,5-二甲氧基苯甲醛,收率为91.9%,并分析溴代过程中甲酰基的邻位效应及溴代产物的稳定性.
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The indoor air formaldehyde pollution has some adverse effects on human health.
室内空气甲醛污染严重危害人体健康.
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Formaldehyde and distillation are the nitrogen determination methods in the sample.
甲醛法与蒸馏法是测定样品中氮含量的方法.
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The distribution is the key factor which influences the formaldehyde thickness distribution.
分析了气流组织对甲醛浓度分布的影响.
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Silver-coated carbonyl iron powder was prepared by using electroless plating method.
用化学镀法,甲醛为还原剂,制备镀银羰基铁粉.
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Based on the reactions , this paper reports research for synthesizing benzaldehyde.
简要介绍以此类方法对合成苯甲醛的研究.
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The material is readily prepared by reaction of formaldehyde and hydrazine.
这种物质很容易由甲醛和肼反应而得到.
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Objective To explore the mechanism of formaldehyde ( FA ) inhalation induced lung injury.
目的探讨甲醛中毒的肺脏损害机制.
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Cu furaldehyde-diamine Schiff base complex was synthesized with the yield of 63.
合成了一种席夫碱金属络合物——呋喃甲醛乙二胺铜络合物,收率为63.
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这些结果提示，甲醛固定的组织可用于进行体外受体放射自显影研究。
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The production procedure of polyvinyl acetate latex paint in polyvinyl formal solution was studied.
研究了在聚乙烯醇缩甲醛溶液中制备聚醋酸乙烯酯乳胶漆的方法.
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方法：采用小鼠耳廓肿胀法、皮内染料渗出法、甲醛和琼脂所致大鼠足跖肿胀法以及棉球肉芽肿胀法，观察甘氨胆酸的急慢性炎症反应。
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Diagnosis on formaldehyde aerial contamination in newly decorated houses in Longyan
龙岩市新装修房室内空气中甲醛污染调查分析
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