比较了氯乙酰氯和溴乙酰溴对中间体及硝基安定收率的影响。
The effect of chloroacetyl chloride and bromoacetyl bromide on yields of intermediates and nitrazepam was compared.
我们得到了负能量,通过将氯和钠结合在一起。
We see that we get a negative energy by attaching the chloride to the sodium.
没有有机的残渣,氯和盐留下氯丁橡胶使沈积。
Leaves neoprene articles free of organic residue, Chlorine and salt deposits.
介绍了离子膜烧碱装置中空气吹除脱氯和真空脱氯工艺。
The dechlorination process by air purge and vacuum in ionic membrane caustic soda units were introduced.
摘要:聚氯乙烯可由乙烯、氯和催化剂经取代反应制成。
Abstract: Polyvinyl chloride can be made by ethylene, chlorine and catalyst through substitution reaction.
主要研究了二氧化氯和双氧水在湿生面条保鲜方面的作用。
The effect of chlorine dioxide and hydrogen peroxide on the shelf life of wet raw noodle was investigated.
您不应该使用自来水的水箱,因为自来水中含有氯和氟化物。
You should not use tap water for the tank, because tap water contains chlorine and fluoride.
将军说,肼的性质与氯和氨类似,它会引起肺部和呼吸道疾病。
Hydrazine is similar to chlorine or ammonia in that it affects the lungs and breathing tissue, the general said.
还提供了一种消毒水的方法,和生产二氧化氯和消毒水的设备。
A method of disinfecting water, and apparatus for making chlorine dioxide and for disinfecting water also are provided.
同时,还改进了对甲苯磺酰氯和对甲苯磺酰甘氨酸的合成方法。
The improved methods for the syntheses of tolylsulfonyl chloride and Np-tolysulfonyl amino acids have been described in this work.
它主要由苯甲酰氯和苯酚制备苯甲酸苯酯,然后重排、醚化所得。
It is based on phenol benzoate which is made from benzoyl chloride and phenol through rearrangement and etherification.
将油酸酰氯和谷氨酸在碱性溶液中反应制备了N-油酰基谷氨酸。
N-oleoylglutamic acid was prepared from glutamic acid and oleoyl chloride in alkali solution and its structure was characterized by IR.
当烃(典型的烷烃)的几个或全部氢被氯和氟取代而生成的化合物。
Compounds formed when some or all of the hydrogen atoms in a hydrocarbon (typically an alkane) have been replaced with chlorine and fluorine.
于不同时间点取血测定血浆渗透压、血钠、血钾、血氯和动脉血气。
Blood samples were taken at eight different time intervals to measure plasma osmotic pressure, serum electrolytes and arterial gas analysis.
提出采用燃烧氧化偶联离子色谱法测定甲醇、碳黑中的氯和硫的含量。
A new method has been developed to determine chlorine and sulfur content in methanol and charcoal by using combustion oxidation coupled to ion chromatography.
通过分离含氯和硅的聚合物表明标记的氯在接触后的硅样品表面被探测到了。
Using separate pieces of fluorine- and silicon-containing polymers allowed the authors to show that signals consistent with the presence of fluorine were detected in the silicon sample after contact.
这些惰性物质包括:硅、钙、氯和钾等元素,其对生产的影响是显而易见的。
The inert deposits include silicon, calcium, Cl and K and their influence on production is obvious.
本文对二氧化氯和臭氧消毒机理、氧化消毒特性及经济性等方面进行介绍分析。
In this paper, the mechanism of chlorine dioxide and ozone disinfection, oxidation and disinfection and features are introduced and analyzed.
催化烷基氯和苯的反应,其中二氯甲烷和苯反应得到5倍量的单一产物二苯甲烷。
This system also can catalyze the reaction of benzene with alkyl chloride, in which only the desired diphenylmethane is isolated in good yield (5 equiv. ).
为了满足人们对水质的不断要求,二氧化氯和臭氧是今后水处理中的主要应用方向。
In order to satisfy the constant demands on water quality, chlorine dioxide and ozone water treatment are the main application directions in the future.
检查流量计,压力表和其他记录仪器,测量水的输出水平和消费水平,细菌含量,氯和氟水平。
Read flow meters, gauges and other recording instruments to measure water output and consumption levels, bacterial content, chlorine and fluoride levels.
探讨了硬脂酰氯和单宁酸的量比、催化剂对甲苯磺酸的用量、反应温度和溶剂等对合成的影响。
The main factors affecting the reaction such as ratio of reactants, the catalyst (p toluenesulfonic acid), temperature and solvent were discussed.
一般说来,引发剂的卤化物组份的活性,是随连在同一碳原子上的氯和溴原子的数目的增多而增长。
In general, the activity of the halide component of the initiator increases with the number of chlorine or bromine atoms joined to a single carbon atom.
在游泳池或海滩使用,可以帮助消除头发和身体的氯和盐的残留物,然后将本系列的护发素涂抹于头发。
May be used after a day at the pool or the beach to help remove chlorine and salt residues from hair and body; follow with our hair conditioner that can be left in for extra conditioning.
从对生物量和微生物耗氧速率的影响方面,考察了盐水、氨水、氯和氯胺等四种除蚤剂对活性炭上微生物的影响。
The influences of dosing medicaments, such as brine, ammonia water, chlorine and chloramines, on microorganisms of activated carbon were investigated by means of biomass and OUR.
由丁酰氯和糠醇反应,以廉价的氧化钙和碳酸钠为复合束酸剂,合成了香料丁酸糠醇酯,并用IR、GC等进行了表征。
Using sodium carbonate and calcium oxide as cheap acid-capturer, perfume furfuryl butyrate was synthesized from furfuryl alcohol and butyryl chloride, and was characterized by GC and IR.
一个保养得好的游泳池会用足够剂量的氯和其他消毒剂来杀灭致病菌,纽约大学兰格恩医学中心的临床微生物免疫学主任,Philip J.
A well-maintained swimming pool uses the appropriate amount of chlorine and other disinfectants to kill bacteria which cause illness, explained Dr.
科学家们认为人类造成臭氧层破坏的主要原因是一些化学物质,像氯氟碳,当它们到达平流层后会分解成氯和溴,然后和臭氧发生化学反应从而破坏臭氧层。
The problem with the ozone layer is that when certain chemicals, like chlorofluorocarbons, reach the stratosphere, they break down into chlorine and bromine, which react with the ozone and destroy it.
科学家们认为人类造成臭氧层破坏的主要原因是一些化学物质,像氯氟碳,当它们到达平流层后会分解成氯和溴,然后和臭氧发生化学反应从而破坏臭氧层。
The problem with the ozone layer is that when certain chemicals, like chlorofluorocarbons, reach the stratosphere, they break down into chlorine and bromine, which react with the ozone and destroy it.
应用推荐