氧 - 关于氧的双语例句 - 氧造句 - 语文书

为您找到692个与“氧”相关的双语例句：

The reaction 5 - amino - lH - pyrazole with 2,4 - dichlorophenoxy acetyl chloride was studied.
2.研究了 5- 氨基 -1H- 吡唑与2,4-二氯苯氧乙酰氯反应的选择性和反应性能.
It was prepared by the reaction of 12 H - dibenzo [ d , g ] [ 1,3 ] dioxocin - 6 - carboxylic acid with acetoxime.
由二苯并-1,3-二氧杂 - 环辛烷 -2- 羧酸经两步反应制得, 总收率70%.
Methods: α - Bromo - 4 - benzyloxy acetophenone is synthesized with 4 - hydroxy acetophenone and bromonium as materials and methanol as solvent.
方法: 以甲醇为溶剂,以对羟基苯乙酮和溴为原料制备了α - 溴-4-苄氧苯基苯乙酮.
Objective: A new approach to prepare α - bromo - 4 - benzyloxy acetophenone was introduced.
目的: 报道一种合成α - 溴-4-苄氧苯基乙酮的新方法.
Water soluble hydroxypropyl � � cyclodextrin was converted to acetonyl hydroxypropyl � � cyclodextrin via selective oxidation.
通过选择性氧化,将水溶性优良的羟丙基β环糊精转化为丙酮基羟丙基β环糊精.
Acetic acid is formed as an intermediate in the anaerobic fermentation of carbohydrates, proteins, and fats.
醋酸是碳水化合物, 蛋白质和脂肪在厌氧发酵时所形成的中间体.
ObjectiveTo discuss the effects of acetazolamide on mouse antianoxia and swimming performance.
目的探讨乙酰唑胺对小鼠缺氧耐受和游泳耐力的影响.
The necessary material of 2 - ( 2 - methoethyl ) acetaldehyde diethyl acetal was synthesized in addition.
另外还合成了必需原料 2- ( 2- 甲氧基乙氧基 ) 乙醛二乙醇缩醛.
The results show that ozonation improves the bioavailability of acenaphthene.
臭氧氧化改善了苊的可生化性.
During alcoholic fermentation acetaldehyde acts as a hydrogen acceptor instead of oxygen.
在这个过程中乙醛取代了氧作为氢的受体.
In aerobic systems, oxygen is the terminal electron acceptor and is reduced.
在需氧体系中, 氧是末端电子接受体并且被还原.
CONCLUSION Acanthus ilicifolius L. has activity of antioxdant.
结论老鼠? 具有抗氧化活性.
OBJECTIVE To search antioxidant compounds from Acanthus ilicifolius L.
摘要目的从药用红树植物老鼠?中寻找具有抗氧化的活性成分.
Total absorptivity can be up to 98 % using second - order absorption - oxidation process.
采用二级吸收 — 氧化流程,总的吸收率可达98%以上.
In that phase, aborning of the job that make oxygen produced very big effect.
在那个阶段, 制氧工作在生产中发挥了很大的作用.
Sections 301 - 311, added in 1988, relate to indoor radon abatement.
1988年增加的第301—311条, 涉及的是室内氧的控制问题.
...carbon monoxide and other noxious gases.
一氧化碳和其他有毒气体
They will press for international action to safeguard the ozone layer...
他们将督促国际社会采取行动保护臭氧层。
The original white lead pigments have oxidized and turned black.
最初的白色铅质颜料氧化后变成了黑色。
Aluminium is rapidly oxidized in air...
铝会在空气中迅速氧化。

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