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This paper uses orthogonal experiment to research on the synthesis technique of pseudo-ally lionone from citral and allylacetone. The product structure had analysed by IR.

利用正交试验法对柠檬醛和丙基丙酮合成假性丙基紫罗兰酮的工艺进行了研究,并用红外光谱对产品进行了结构分析和鉴定。

The properties of C_(60) colloid and nanoparticles were characterized by UV-vis spectra and TEM.

结果表明在相同油水配比条件下,改变超声波输出功率可以调节[60]富勒水溶胶的浓度,并控制[60]富勒纳米粒子的直径。

It can be used for the updating and upgrading of congener products.

用废旧塑料生产的液态烃主要是合成洗涤剂的起始原料,比用其它原料生产的烃质量高,成本低50%,经济效益高40%。

What's more, we measure the inhibition rate of calcium carbonate and conglutination of the polymaths.

以丙酸、顺丁二酸酐和丙酰胺为原料,过硫酸钾为引发剂,在不同的条件下进行自由基聚合反应,生成不同分子量的共聚物,并测定了这些共聚物的粘度和对碳酸钙的阻垢率。

This item plans to construct 5 thousand t/y Tert - butylamine production equipment which uses internally developed independently isobutene cyanide process for the production of raw materials for pure isobutylene, purity of 99.5% of the domestic production of tert - butylamine.

拟建设5000吨/年叔丁胺生产装置。该装置采用国内自主开发的异丁氰化法生产工艺,以纯异丁为原料,生产纯度为99.5%的叔丁胺产品。

A novel monomer the 1-methyl-4,5-bis(4-chlorobenzoy) cyclometer containing cyclohexene were prepared,so a group of novel polys containing the cyclohexene and phthalazinone moieties was prepared by the nucleophilic displacement reaction of 1-methyl-4,5-bis(4-chlorobenzoyl) cyclohexene and 4,4′-dichlorodiphenyl sulfone and 4-(3,5-dimethyl-4-hydroxyphenyl)-2,3-phthalazin-1-one.

用新型聚合单体1-甲基-4,5-二(4-氯代苯甲酰基)环己与4-(4-羟基苯基)-2,3-二氮杂萘-1-酮、4,4′-二氯二苯砜单体经亲核共缩聚反应,成功地合成了含环己结构的杂环联苯型聚醚系列聚合物。

A novel monomer the 1-methyl-4,5-bis (4-chlorobenzoy) cyclometer containing cyclohexene were prepared,so a group of novel polys containing the cyclohexene and phthalazinone moieties was prepared by the nucleophilic displacement reaction of 1-methy l-4,5-bis(4-chlorobenzoyl) cyclohexene and 4,4'-dichlorodiphenyl sulfone and 4-(3,5-dimethyl-4-hydroxyphenyl)-2,3-phthalazin-1-one.

用新型聚合单体 1-甲基-4,5-二(4-氯代苯甲酰基)环己与 4-(4-羟基苯基)-2 ,3-二氮杂萘-1-酮、4,4′-二氯二苯砜单体经亲核共缩聚反应,成功地合成了含环己结构的杂环联苯型聚醚系列聚合物。

Cycloolefin and α-olefin copolymerization and application of its resultant products have been reviewed.

评述了环烃与线性α-烃共聚物的主要生产厂家、结构与性能及制备方法等。

The fourth part of this work was to enhance the RIE resistance of the photoresist by substituting the cycloolefin structure for the acrylate structure.

第四部份延伸第三部份之脱水交联反应机制於环类负型树脂,并验证环类光阻剂具有较压克力光阻剂更优秀的抗蚀刻能力。

Gasolinecontained 67.8% aromatic hydrocarbons, 21.47% olefins and a small quantityof alkanes and cycloparaffin hydrocarbons. The enlarging study on blending feed of vegetable oil and petroleumfraction was performed in a Two-Stage Riser.

通过优化各种因素,植物油的转化率达到81.18%,丙产率达到19.52%;汽油的产率为30.58%,其中含有67.87%的芳烃、21.47%的烃,以及少量的烷烃和环烷烃,其研究法辛烷值为90.3,抗爆指数为83.9。

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推荐网络例句

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了,排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意,我建议我们在价格上大家各让一半。

After an hour and no pup, look for continued contractions and arching of the back with no pup as a sign of trouble.

一个小时后,并没有任何的PUP ,寻找继续收缩和拱的背面没有任何的PUP作为一个注册的麻烦。