丙烯腈

The results show that acrolein appears at the beginning of the reaction, but acrylonitrile appears earlier when the temperature is higher which indicates that the formation of acrylonitrile takes some time.

研究发现，反应开始阶段即有丙烯醛生成，而丙烯腈随反应温度的升高，出现的时间变早，说明丙烯腈的生成需一定的时间。

The mutants in good condition were selected in the culture medium of certain concentration of acrylonitrile.

为获得耐高浓度丙烯腈的菌株，利用紫外线对珊瑚诺卡氏菌进行诱变，并将诱变后生长情况较好的突变株在含一定浓度丙烯腈的培养基中进行筛选。

The pressure fall of acrylonitrile fluid - bed reactor was studied with the industrial operation data.

采用丙烯腈流化床反应器的工业运行数据，研究了丙烯腈流化床反应器的压降。

The results showed with the increase of the acrylonitrile content, the impact strength and flexural strength of the copolymer increased at the same time.

结果表明，随着丙烯腈含量的增加，共聚物的静态力学性能有相应提高；相对丙烯腈含量为15%而言，25%处冲击强度和弯曲强度的提高率分别为232.91%和32.31%。

Acrylonitrile or methacrylonitrile is hydrolyzed in a suitable aqueous reaction mixture by an enzyme catalyst characterised by a nitrile hydratase and amidase activity of Comamonas testosteroni 5-MGAM-4D, producing the corresponding acid.

在合适的含水反应混合物中通过催化剂使丙烯腈或甲基丙烯腈进行水解生产对应的酸，催化剂的特征在于具有睾丸酮假单胞菌5-MGAM-4D的腈水合酶和酰胺酶活性。

Benzene nitriles studied included parent benzene nitriles(cinnamonitrile,benzo nitrile,benzeneacetonitrile,isopropyl benzeneacetonitrile) and para-chloro ben zene nitriles(para-chloro cinnamonitrile,para-chloro benzonitrile,para-chloro be nzeneacetonitrile,para-chloroisopropyl benzeneacetonitrile).

所研究的苯腈类化合物包括苯腈类母体化合物(苯丙烯腈、苯甲腈、苯乙腈、异丙基苯乙腈)和对氯苯腈类化合物(对氯苯丙烯腈、对氯苯甲腈、对氯苯乙腈、对氯异丙基苯乙腈)。

The activity of Ca2+-ATPase and phosphorylase A of liver in rats was determined to study the effect of acrylonitrile on calcium homeostasis and to clarify the toxicological mechanism of ACN.

本文通过丙烯腈对大鼠肝脏Ca2+-ATPase和磷酸化酶A活性影响的研究，探讨了丙烯腈对动物肝脏钙稳态的影响，进一步阐明丙烯腈的毒作用机制。

The second layer (10) comprises: 100 parts by weight of an acrylonitrile-butadiene rubber, said acrylonitrile rubber comprising from 20 to 65 percent by weight of bound acrylonitrile; from 3 to 20 parts by weight, per 100 parts by weight of the NBR, of at least one acid acceptor; from 1 to 10 parts by weight, per 100 parts by weight of the NBR, of at least one organophosphonium salt; and from 0.25 to 10 parts by weight, per 100 parts by weight of the NBR, of at least one amidine.

公开的是一种包含直接相互接触的第一层与第二层的软管；第一层包含从四氟乙烯、六氟丙烯、偏二氟乙烯、和全氟乙烯醚衍生的一种热塑性四元共聚物；第二层包含100重量份丙烯腈丁二烯橡胶，所述丙烯腈橡胶包含约20～约65wt％结合丙烯腈；每100重量份NBR约3～约20重量份至少一种酸受体；每100重量份NBR约1～约10重量份至少一种有机盐；和每100重量份NBR约0.25～约10重量份至少一种脒。

In order to approach the industrialization continuous production flow, the article studied production of acid dyeable polyacrylonitrile by the continuous water phase suspension polymerization using the existing laboratory instrument. The influence of third monomer and initiator content on productivity and dye uptake of PAN were investigated.

为了接近工业化的连续生产流程，利用实验室现有的仪器设备，设计了连续水相悬浮法生产酸性染料可染聚丙烯腈的实验装置，实现了聚丙烯腈的连续聚合，并研究了第三单体、引发剂用量对聚丙烯腈上染率、产率的影响。

PART TWO In Part two of this paper, N-(2, 4, 6-tribromophenyl) maleimide was copolymerized with styrene and acrylonitrile (1), with styrene、acrylonitrile and Nphenylmaleimide (2), with acrylonitrile (3) by suspension polymerization.

第二部分在本论文第二部分，采用三溴氮苯基马来酰亚胺分别与苯乙烯和丙烯腈，苯乙烯、丙烯腈和氮苯基马来酰亚胺，丙烯腈进行悬浮聚合。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。