查询词典 condensation
- 与 condensation 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Condensation on horizontal finned tube with porous drainage strip was investigated systematically through experiments and analysis.
本文对低肋管带多孔排液芯的凝结传热进行了系统、深入的实验研究和理论分析。
-
The key intermediate 3-methylaminopiperidine was synthesized from 3-methylaminopyridine by two methods,formylation and lithium aluminium hydride reduction or condensation with triethyl orthoformate and sodium borohydride reduction,and then hydr...
以3-氨基吡啶为原料,分别通过甲酰化反应、氢化铝锂还原和原甲酸三乙酯缩合、硼氢化钠还原两种方法得到3-甲胺基吡啶,最后经催化氢化得到中间体3-甲胺基哌啶。
-
The key intermediate 3- methylaminopiperidine was synthesized from 3-methylaminopyridine by two methods, formylation and lithium aluminium hydride reduction or condensation with triethyl orthoformate and sodium borohydride reduction, and then hydrolysis.
以3-氨基吡啶为原料,分别通过甲酰化反应、氢化铝锂还原和原甲酸三乙酯缩合、硼氢化钠还原两种方法得到3-甲胺基吡啶,最后经催化氢化得到中间体3-甲胺基哌啶。
-
The paper mainly studies the catalytic effect of crown ether for Darzens glycidic ester condensation of aromatic aldehydes with ethyl chlorocetate in mixed sovent system.
本文报道了在混合溶剂中冠醚催化作用的 Darzens 酯缩合反应,并合成了四个芳族缩水甘油酸酯类化合物。
-
The molybdoneodymium heteropoly compound K_(11)[YPMo_(11O_(39)_2] was synthesized and used as catalyst in the synthesis of glyoxal by hydrogen peroxide and condensation of urea from allantoin .
尿囊素是一种被广泛应用于医药、农业和轻化工领域的重要的精细化工产品。
-
As an intermediate for preparing vanillin derived from glyoxylic acid, 3, 4-dihydroxymandelic acid is synthesized based on condensation of catechol and glyoxylic acid in alkaline aqueous solution.
以邻苯二酚和乙醛酸为原料,在碱性条件下发生缩合反应,合成了3, 4-二羟基扁桃酸,此物质是多种香料和药物合成的重要中间体。
-
At present,ethylvanillin has mostly been prepared in the world by pyrochemical oxidation of condensation compound of o-ethoxyphenol and glyoxylic acid,which is of the problem that the catalysts such as cupric oxide were removed difficultly in the end.
乙基愈创木酚-乙醛酸高温化学氧化法是目前国际上制备乙基香兰素的主要方法,但该法存在反应终了时铜盐或氧化铜等催化剂除去困难的问题。
-
Magma source original from remelting of the Dabie gneissic complex-magma intrusion and condensation stage under the extension system-potassic alternation and initial magmatic hydrothermal mineralization stage-meteoric water adding into the middle and latter mineralizing stages.
大别片麻杂岩重熔形成岩浆源—伸展体制下岩浆侵入冷凝阶段—钾化及初始岩浆热液成矿阶段—大气降水加入的中后期成矿阶段。
-
About an hour before you are ready to serve the coq au vin, lift off the greaseproof paper (watch out for a condensation puddle).
大约一小时后你准备提供红酒烩鸡,升空的防油纸。
-
Heptanone was synthesized from n - butyl aldehyde and propanone via cross al-dol condensation, dehydration, catalyzed hydrogenation.
用氧化镁或氧化钙负载氢氧化钠固体碱作缩合催化剂,钯/炭作为加氢催化剂,由丁醛和丙酮经交叉酮醛缩合、脱水、催化加氢制得2-庚酮。
- 推荐网络例句
-
What would he tell Judith and the children?
他将怎样告诉朱迪丝和孩子们呢?
-
I this is at that time, the opinion with peacockish true girl is full of in a heart.
这就是当时的我,一个心中布满虚荣的女孩子真实的想法。
-
Oh, and I bought myself a new laptop," he said."
哦,我还给我自己买了一个新笔记本"他说。"