1、

For ASP-1 and ASP-2 catalysts, the yield of dioxane can be over 90% of theoretical yield with 2 and 2. 5g cat. per mole diethylene glycol. 4. Result determination standard;

ASP-1和ASP-2催化剂用量为2-2.5g(以每摩尔一缩乙二醇计),在180&200℃反应2小时,1,4-二氧六环的产率达理论产率的90%。

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2、

On the other hand, parthenogenesis ( the scientific term for virgin birth) is common among other creatures in nature. Hammerhead sharks, komodo dragons, mole salamanders, and an assortment of other reptiles, fish and insects can all produce offspring without mating.

不过在自然界,生物体的孤雌生殖(处女生育的学名)十分普遍,锤头鲨、科莫多巨蜥、摩尔蝾螈和其他种类的爬行动物、鱼类以及昆虫都可以不经交配,直接繁殖。

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3、

The effects of catalyst variety, co-catalyst amount, feedstock mole ratio, stabilizer amount and condensation temperature on carboxyl terminal group content of polytrimethylene terephthalate were studied.

研究了催化剂种类,助催化剂用量,原料配比,稳定剂用量以及缩聚反应温度对聚对苯二甲酸丙二醇酯(PTT)端羧基含量的影响规律。

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4、

The influences of reaction temperature, mole ratio of alcohol to tert-butyl alcohol, reaction time and quantities of catalyst were emphatically studied.

分别考察了反应温度、原料配比、反应时间、催化剂加入量等因素对醚化反应的影响。

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5、

Here, Mole, be a good fellow and fry me some eggs.

好了,鼹鼠,好伙计,给我煎些蛋。

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6、

He jumped up and came towards them, talking all the time, and gave the Rat no time to introduce the Mole.

他跳了起来,向他们走去,嘴里说个不停,根本不给水鼠时间来介绍鼹鼠。

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7、

There were crystal substances in the insoluble part, which had high amount of selenium and mercury in the mole ratio of almost 1:1 and was proved to be tiemannite.

不溶部分有晶体颗粒物质存在,其中硒、汞含量很高,且以近似1:1的摩尔比关系存在。进一步确证这些颗粒物质是硒化汞晶体。

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8、

The effects of the kind and dosage of dehydrating agent, the mole ratio of acid to alcohol, reaction time on conversion, yield and purity were studied.

所得主要结论性成果如下:1.在丙烯酸和二乙二醇单甲醚进行酯化制备MOEOEA的过程中,考察了共沸剂种类及用量、酸醇摩尔比、酯化时间对转化率、产物收率及纯度的影响。

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9、

Relationship Between the ras Gene Mutation and Tissue Differentiation in the Invasive Hydatidiform Mole

ras基因突变与侵蚀性葡萄胎组织分化的关系研究

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10、

The condensability of the mixed monolayer increases with the mole ratio of fatty alcohol, or with the hydrophobic chain length of the alcohol more close to that of C_ ( 18) E_ ( 20).

随着脂肪醇摩尔分数的增加,或者脂肪醇链长与C18E20的疏水基链长越接近,混合膜稳定性增强。

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11、

The activation energy for thermal degradation in air is found to be 56.5 kcal/ mole.

在空气中聚全氟丁炔-2的热裂解活化能为56.5千卡/克分子。

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12、

The cis-trans isomerization reaction has been shown to be a first order reaction with an activation energy of 19 kcal/ mole.

顺-反异构化反应系属一极反应,反应活化能为19千卡/克分子。

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13、

The activation energy of EER process determined from the rate of EER as a function of annealing temperature is about 7 Kcal/ mole.

从退火温度与过剩热焓松弛的速率确定了过剩热焓松弛过程的活化能为7千卡/充分子。

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14、

In the same temperature range the apparent activition energy of the catalyst reoxidation changes from 12.0 Kcal/ mole at high temperature to 33.2 Kcal/ mole at low temperature.

在相同的温度区间,氧对催化剂再氧化的表观活化能出现转折,高温区为12.0Kcal/mole,低温区为33.2Kcal/mole;

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16、

Its boundaries may be defined by the cis-trans test. The cis-trans isomerization reaction has been shown to be a first order reaction with an activation energy of 19 kcal/ mole.

由顺反测验所确定出的一个功能上的单位。顺-反异构化反应系属一极反应,反应活化能为19千卡/克分子。

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17、

The activation energies of isopropyl, secondary butyl and 1-phenyl ethyl alcohols have been experimentally determined to be 21.0, 20.9 and 16.9 Kcal/ mole respectively.

实验得到的异丙醇,2-丁醇和1-苯乙醇脱氢的活化能分别为21.0,20.9和16.9千卡/克分子。

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18、

The process of thermal chemistry om SO2 removal, with NH3 as well as the effect regulations of the humidity, NH3/ SOS2 mole ratio, the temperature on the collection efficiency of ammonium salts are discussed.

论述了加入NH3的热化学脱除硫过程,以及湿度、NH3/SO2摩尔比、温度对铵盐回收率的影响规律。

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19、

The influences of different ionic liquids, reaction time, reaction temperature, reactant ratio ( mole ratio of phenol to that of TBA), the amount of ionic liquid added on the alkylation reaction and the recycle of ionic liquid were studied.

考察不同的功能化离子液体、反应时间、反应温度、苯酚与叔丁醇的摩尔比以及离子液体的用量等反应条件对烷基化反应的影响,并考察了离子液体的循环使用。

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20、

Moreover, a heat resistant polyester polyols with forseeable molecular weight and inherent viscosity and stable synthesis techniques were prepared through regulating the THEIC/ glycerol, OH/ COOH and triol/ diol mole ratios in original components.

通过调节组分中的THEIC/甘油、羟基/羧基及三元醇/二元醇的摩尔比例,能够稳定合成工艺,制得耐热性能好、具有预定分子量和特性粘数的聚酯多元醇齐聚物。

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