名称:磷酸三异丁酯;
目的用三异丙基苯酚和三氯氧磷为原料合成三异丙苯基磷酸酯。
Objective: Tri-isopropylated phenyl phosphate ester was synthesized from isopropylphenol and phosphorus oxychloride.
SBS进行催化加氢反应,采用双乙酰丙酮钴-三异丁基铝均相催化体系;
SBS carried out catalytic hydrogenation reaction, using acetone-tri-isobutyl aluminum as homogeneous catalyst.
通过选择纺丝工艺制得收缩差大于10%、异纤度比大于2的三异共纺长丝。
Depending on the selected process, the multi-filament can have a contraction and titre deviation respectively more than 10% and 2.
本文就“三异”丝在织造、染整中遇到的主要问题展开了讨论,并得到了一些结果。
In this paper, the problems that may be meet in the weaving and finishing of TD yarn are discussed and some meaningf.
运用WDS新工艺生产三异涤纶共纺丝织物,对其前道准备的各种技术要素进行分析探讨,阐述了WDS工艺的优越性。
Analyses and discusses various technical factors of the preparation work in the production of fabrics of triangle-profiled co-spun yarns by WDS new technology, with its advantages presented.
以三异辛胺萃淋树脂为微型柱固定相,采用流动注射在线预浓集与火焰原子吸收法联用技术,对微量钯的测定进行了研究。
A flow injection on line extraction chromatographic separation and preconcentration system is proposed for the determination of trace palladium by flame atomic absorption spectrometry (FAAS).
采用氢化钙作为脱水剂,以硼酐及异丙醇为原料合成了硼酸三异丙酯,该方法具有成本低、操作简便、条件温和、产率高的优点。
Triisopropyl borate was synthesized with high yield from 2 propanol and boron oxide by using calcium hydride as drying agent to remove resultant water.
结果表明以上几个因素对产物收率都有显著影响,实验确定了反应工艺路线,产物乙烯基三异丙烯氧基硅烷的平均收率可达45.7%。
The results show that these factors affect the yield. Under the optimum reaction conditions, the yield of vinyltriisopropenyloxysilane can reach 45.7%.
三组间干预前后尿8-异前列烷浓度差异无统计学意义(P>0.05)。
There were no significant differences in urine 8-isoprostanes among 3 groups before or after intervention(P>0.05).
三个基本的过程是异时性、异托位和异态。
Three basic processes are heterochrony, heterotopy, and heteromorphy.
其功能与周期蛋白和周期蛋白依赖性激酶形成的异源三聚体存在化学计量关系。
It functions in stoichiometric relationships forming heterotrimeric complexes with cycling and cyclin-dependent kinases.
异象出现了三次。
尼尔森和同事们选择三种最常用于麻醉的气体研究,异氟烷地氟烷七氟烷。
Nielsen and colleagues chose to look at three of the most common gasses used as general anesthetics: isoflurane, desflurane and sevoflurane.
结果,历经数百万年间的自然选择,形成了我们今日熟知的异特龙、梁龙、三角龙和霸王龙族群。
The result, once natural selection had done its work over the course of millions of years, was the now familiar cast of Allosaurus, Diplodocus, Triceratops and Tyrannosaurus rex.
伯沙撒王在位第三年,有异象现与我但以理,是在先前所见的异象之后。
In the third year of the reign of king Belshazzar a vision appeared unto me, even unto me Daniel, after that which appeared unto me at the first.
其他两种气体可以显著减小对环境的影响:异氟烷体现在温室气体的作用上仅仅是地氟醚的三分之一,而七氟醚只有地氟醚的八分之一。
The other two gases have significantly less impact: isoflurane is only a third as powerful a greenhouse gas as is desflurane and sevoflurance has only an eighth of desflurane's effect.
在此基础上,从语法、语义、语用三个平面辨析同义词的同中之异。
On this basis, we analyze the differences among synonyms from the three dimensions: syntactic, semantic and pragmatic.
顺乌头酸酶2 (ACO2)在三羧酸循环第二步骤中催化从柠檬酸经顺乌头酸生成异柠檬酸的异构化(1,2)。
Aconitase 2 (ACO2) catalyzes the conversion of citrate to isocitrate via cis-aconitate in the second step of the tricarboxylic acid (TCA) cycle (1, 2).
所说二千三百日的异象是真的,但你要将这异象封住,因为关乎后来许多的日子。
And the vision of the evening and the morning which was told is true: wherefore shut thou up the vision; for it shall be for many days.
对中国水仙的核型分析,支持它是三倍体的观点,但其核型也显示出了异源三倍体的倾向。
Our result of karyotype analysis supports the viewpoint that Chinese narcissus belongs to triploid plant, and the karyotype leans to a heterogeneous triploid.
介绍了连续法生产三氯异氰尿酸新工艺,该工艺和传统工艺相比,具有生产安全、高效、节能的特点。
New production process of symclosene by continuous method was introduced. Comparing with the traditional method, the new process is safe, high efficiency and saving energy.
目的:评价三种异种骨衍生材料修复节段性骨缺损的成骨作用。
Objective: To evaluate the osteogenesis of xenogeneic bone derived materials in repairing segmental bone defects.
文章从动因、途径及语用基础三个方面探索了取异策略在言语交际中的具体实施问题。
From the three aspects of motivation, approach and pragmatic prerequisite, this paper explores how divergence strategy can be adapted in speech communication.
文章从动因、途径及语用基础三个方面探索了取异策略在言语交际中的具体实施问题。
From the three aspects of motivation, approach and pragmatic prerequisite, this paper explores how divergence strategy can be adapted in speech communication.
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