1、

Its main components include propane, butane and butylene.

主要成份是丙烷 、 丁烷、丁烯等.

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2、

Butane and butylenes has the same characteristic with propane and propylene.

丁烯与丁烷表现出与丙烯、丙烷相似的特性.

3、

A flammable gaseous fraction of petroleum, consisting chiefly of butane.

粗丁''.'烷'.''石油中易燃的气体部分, 主要由丁''.'烷'. ''组成.

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4、

KX 50 butane flow proportional counter is described and its plateau characteristic is determined.

实验证明用丁烷作为流气式正比计数管的工作气体是可行的.

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5、

The polyhedral flame has been observed clearly when butane burns in some laminar, conditions.

在一定条件下,层流预混气体燃烧过程中可清晰地观察到多棱火焰现象.

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6、

Butane is found into both oil and natural gas.

丁烷气体是从石油和天然气中找到的.

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7、

A mathematical model was established for catalytic dehydrogenation of butane in plug flow membrane reactor.

建立了模拟真实实验室膜反应器的数学模型:活塞流数学模型.

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8、

The polyhedral flame has been observed when butane burns in some laminar conditions.

在丁烷层流预混气体的燃烧过程中清晰地观察到多棱火焰现象.

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9、

Other are less common, can include ethane, propane, butane and light and heavy naphtha.

其它不常用的原材料包括乙烷 、 丙烷 、 丁烷以及轻、重石脑油.

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10、

The butane conversion of catalyst aged in different pH has similar value.

在不同pH值老化的催化剂先驱体,经活化后对丁烷的转化率基本相同.

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11、

The main component in 4 # solvent is liquefied butane.

四 号 溶剂主要成分为液化丁烷.

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12、

In non-protonic solvent, with potassium hydroxide as condensation agent, N-alkylation has been carried out with bromo-n-butane and monoacetylaniline, and a photographic grade N-butyl-N-phenylacetamide has been synthesized.

在非质子溶剂中,以氢氧化钾为缩合剂,用溴代正了烷和苯乙酰胺进行N烃基化,合成了照相级N正丁基N苯乙酰胺。

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13、

With the increasing desire of butene, the n-butane oxidative dehydrogenation ( ODH) being as a vital reaction of the selective oxidation has drawn more and more attention throughout of the world.

随丁烯需求量的日益增加,正丁烷氧化脱氢作为其中的一个重要反应,越来越受到重视。

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14、

As a vital reaction of the selective oxidation, the oxidative dehydrogenation ( ODH) of n-butane is becoming increasingly important not only in academic research but also in industrial utilization.

正丁烷氧化脱氢作为其中的一个重要反应,不论在理论研究还是在工业应用方面均具有重要意义。

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15、

Influence of strontium on ptsn/ al 2O 3 catalysts in n butane dehydrogenation

锶助剂对铂锡催化剂正丁烷脱氢催化性能的影响

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16、

Mathematical modeling of butane dehydrogenation in inorganic membrane reactor

应用数学模型模拟膜反应器中丁烷脱氢

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17、

In this article, the crease resisting anti-shrinkage mechanism and synthetic method of1,2,3,4-butane tetracarboxyllc acid for cellulosic fibre have been narrated.

论述了1,2,3,4丁烷四元羧酸对于纤维素纤维的抗皱防缩机理及合成制备方法。

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19、

Flammable, non-flammable or poisonous such as butane, propane, aqualung cylinders, lighter fuels or refills, aerosols;

易燃的,非易燃的或是有毒的,比如丁烷,丙烷,水中呼吸氧气筒,轻质燃料,气雾剂;

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20、

Development of ashless dispersant ── polyisobutylene butane diacid pentaerythritol ester

聚异丁烯丁二酸季戊四醇酯无灰分散剂的研制

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