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甲醛

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As an indicator pollutant formaldehyde can reflect the level of indoor air pollution in these shops.

甲醛作为指示污染物能够反映室内空气污染的水平。

According to tests, a pot of aloe can absorb about one cubic meter of air in 90% formaldehyde.

据测试,一盆芦荟大约能吸收一立方米空气中90%的甲醛

Generally speaking, the pot of Chlorophytum able to absorb one cubic meter of air in 96% of carbon monoxide and 86% formaldehyde, but also photocopiers and other emissions from the decomposition of benzene, which can not be substituted by other plants.

一般而言,一盆吊兰能够吸收一立方米空气中96%的一氧化碳和86%的甲醛,还能分解由复印机等排放的苯,这是其他植物所不能替代的。

The bedrooms pollution was more severity than that of living rooms; and the air pollution of artificial wood furniture rooms was more severity than that of wood furniture rooms.

主卧室污染较之于客厅严重;非实木家具居室污染较之于实木家具居室严重;甲醛污染浓度高且持续时间较长。

Fluoroalkyl acetic acids were converted to their corresponding carbonyl chlorides, and the latter reacted with o-aminpbenzyl aldehyde and ammonia gas to give 3-(1-imino-fluoroalkyl)-1H-quinolin-2-ones in moderate yields.

将2-氟烷基乙酸转化成相应酰氯,后者与邻氨基苯甲醛在通氨气条件下以较高产率转化为相应的3-(1-亚胺基-氟烷基)-1H-喹啉-2-酮。

PLASTICS AND RESIN: AB、ABS emulsion, uric acid resin, phenolic aldehyde resin, urea-formaldehyde resin, formaldehyde resin, polythene,poly-chloroprene and etc.

塑料树脂: AB,ABS乳液、尿醛树脂、酚醛树脂、密胶甲醛树脂、聚乙烯、聚氯乙烯等。

AB, ABS emulsion ,uric acid resin, phenolic aldehyde resin, urea-formaldehyd e resin, formaldehyde resin, polythene, poly-chloroprene and etc.

塑料树脂 AB、 ABS乳液、尿醛树脂、酚醛树脂、密胶甲醛树脂、聚乙烯、聚氟乙烯等。

The 1,3-2,4-di (3,4-dimethylbenzy-lidene) xylitol was synthesized by means of aldol condensation reaction with xylitol and (3,4-dimethyl) benzaldehyde as raw materials and paratoluenesulfonic acid as catalyst.

以木糖醇和3,4-二甲基苯甲醛为原料,在酸催化下进行醇醛缩合反应,合成了1,3-2,4-二(3,4-二甲基)苄叉木糖醇。

In the Aldol condensation of acetone with 4-nitrobenzaldehyde, two different hybrid secondary amine-functionalized mesoporous materials displayed enhanced catalytic performance in comparison to primary amine-functionalized materials. The possible reason is that the presence of organic functional groups with larger steric hindrance led to the enhanced catalytic performance of basic amino groups.

在对硝基苯甲醛和丙酮的羟醛缩合反应中,相对于一级胺功能化的材料,二级胺功能化的SBA-15展示了极大改进的催化活性,这可能是由于具有更大空间位阻效应的有机功能团的引人导致了碱性胺中心催化活性增强。

Trimethylolheptane was synthesized through consecutive aldol condensation and Cannizzaro reaction of octylaldehyde and formaldehyde, using sodium hydroxide as catalyst.

为制备新型芳香缓释聚氨酯微胶囊合成了两亲性单体三羟甲基庚烷。以氢氧化钠为催化剂,辛醛和甲醛在较低温度下发生羟醛缩合反应生成2,2-二羟甲基辛醛。

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Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

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