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The quality of the initial fields of the numerical model and the accurateness of the precipitation forecast are both improved. How to obtain and assimilate the GPS bending angle are studied and realized.

介绍了如何获得GPS折射角资料的原理,研究了对GPS折射角资料的同化方法,实现了对GPS折射角资料的同化。

The effects of various reaction conditions were studied by GC analysis. Reaction time has slight effect on the conversion of acenaphthene. The selectivity of N-phenyl aminoacenaphthene increases with reaction time. Biacenaphthenyls or N-phenyl aminoacenaphthene is in the majority, 77.6% or 90.2% when the molar ratio of AlCl3 to acenaphthene is 1.2 and 2.4 respectively.

GC考察了不同反应条件对苊转化率和产物选择性的影响,时间对苊转化率影响不大,N-苯基氨基苊的选择性随着时间增加而增大;随着AlCl3用量的增加,苊转化率和N-苯基氨基苊的选择性随之增加;AlCl3与苊的摩尔比为1.2和2.4时,产物中联苊和N-苯基氨基苊的选择性分别达到77.6%和90.2%。

Acenaphthene was dehydrogenated to afford acenaphthylene by photochemical reaction with N bromosuccinimide in benzene with the addition of quinoline at room temperature and atmospheric pressure was studied.

在常温常压下,以苯作为溶剂,加入喹啉,使苊与N-溴代丁二酰亚胺发生光化学脱氢反应生成苊烯。

In this study, the CPE processes of four different kinds of polyaromatic hydrocarbons, acenaphthene, anthracene, phenanthrene and pyrene, with two kinds of silicone surfactants, DC-193 and DC-190, were studied separately, and four different assisting methods for the phase separation of the CPE process including heating at a higher temperature, adding salts, centrifugation and stirring were introduced, respectively.

今利用两种聚醚型有机硅表面活性剂DC-193和DC-190,对蒽、菲、芘和苊四种多环芳烃进行浊点萃取研究,分别使用加热、加盐、离心和搅拌等辅助方法改变相分离过程的速度。通过测定表面活性剂富集相的体积百分率Vs/随时间的变化和最终的萃取率,研究上述四种不同辅助方法对相分离行为和萃取性能的影响。

The effect of temperature and carbon dioxide on the acerbity , texture, color and soluble component in persimmon were studied.

试验以新鲜涩柿果为原料,采用CO2脱涩法对柿子进行脱涩,研究了温度和CO2浓度对柿果的涩度、硬度、可溶性固形物含量的影响。

The synthesis of acrolein by means of the catalytic vapor phase condensation of formaldehyde and acetaldehyde was studied.

利用冷凝甲醛和乙醛的气相催化法,来研究丙烯醛的合成。

In this paper,effect of acetanilide herbicides butachlor on Phsiological and Biochemical Characteristics of Microalgae Dunaliella salina was studied in the laboratory.

在海洋生态系统中,海洋微藻起着十分重要的作用。藻类不仅对毒物敏感,而且具有易获取、个体小、繁殖快的特点,是一类很好的测试生物。

In this paper, the influences of acetanilide content on the microstructure and macro properties of polyvinyl chloride were studied by means of differential scanning calorimetry, wide angle X-ray diffraction and scanning electron microscope.

利用差示扫瞄量热法、广角X-射线衍射和扫瞄电镜方法研究了乙酰苯胺质量分数对聚氯乙烯的结晶度、微观形态和宏观机械性能的影响。

The catalysis of single and mixed micelles and functional molecules for alkaline hydrosis of acetanilide has been studied at 40℃ in aqueous acetonitrile solution with UV spectrophotometry.

在40℃下乙腈水溶液中,用紫外分光光度法研究了单一和混合胶束及功能分子对乙酰苯胺碱性水解反应的催化作用。

In this paper,acetanilide,adipic acid and potassium hydrogen phthalate were chosen as additives to advance polyvinyl chloride to crystallize. The effects of compress mold,annealing temperature and time,additive property and loading on the crystallization,microscopicmorphology and mechanical properties of PVC were studied by means of wide angle X-ray diffraction,differential scanning calorimetry,fourier transform infrared spectrophotometer,scanning electron microscopeand tensile test.

本文利用乙酰苯胺、己二酸和邻苯二甲酸氢钾作为聚氯乙烯结晶改性的添加剂,通过广角X-射线衍射法、差示扫描量热法、傅立叶转换红外光谱、扫瞄电镜和万能电子实验机研究了热压、热处理温度和时间、添加剂结构和质量分数对PVC结晶、微观形态和宏观机械性能的影响。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力