查询词典 synthesis

How to calculate the synthesis operator is the key problem of controlled illumination prestack depth migration. In this paper the inverse time focusing operator is synthesized based on the traveltime calculation method of finite difference approach, and with this synthesis operator the authors calculate the focusing point controlled illumination prestack depth migration using Fourier finite difference. The test results of Marmousi model show its effectiveness and the great advantage of improving computational efficiency.

进行控制照明叠前深度偏移的关键是合成算子的选择，笔者基于有限差分的走时计算方法合成了逆时聚焦算子，基于该合成算子利用傅里叶有限差分法进行了聚焦点控制照明叠前深度偏移，针对Marmousi模型的试算结果表明了该方法的有效性及其在提高计算效率方面的巨大优势。

Recent developments in the synthesis,modification and catalytic properties of titanium silicalite molecular sieve are reviewed,including the developments in the synthesis of TS-1 with hydrothermal and isomorphous replacement methods,the modification of TS-1,as well as applications in catalytic oxidation and acid catalysis systems.

本文重点综述了近年来钛硅分子筛催化材料的合成、改性及其催化应用的研究进展，包括钛硅分子筛（TS-1）的水热合成方法和同晶取代合成法、改性、成型与负载以及钛硅分子筛催化氧化功能和酸催化功能的研究。

The experimental results indicate that methanol synthesis gas can be produced by steam gasification of lauan sawdust at 680℃ without catalyst addition. However, in the presence of steam reforming catalyst (RKNR+RKS-1), weight ratio of catalyst to dry wood sawdust =1, methanol synthesis gas can be produced at 580℃.

实验结果显示：未加触媒时，本屑在680℃气化所产生的气体可用於甲醇的合成；而使用蒸气重组触媒(RKNR+RKS-1)，在580℃、触媒与全乾木屑的重量比为1时，所产生的气体即可用於甲醇的合成。

In the paper the effects and main differences of maleic anhydride and acrylic acid in the synthesis of polycarboxylate superplasticizers are analyzed according to their respective characteristics and technical requirements for synthesis.

根据马来酸酐与丙烯酸各自的特性和聚羧酸盐减水剂合成的技术要求，分析了它们在合成过程中的作用和主要差别，并概述了马来酸酐在合成中的应用情况，最后提出了马来酸酐在合成中应用的几点建议。

Uses: Suitable for gas adsorption, the decolorization and refining of catalyst carriers and monosodium glutamate, citric acid and oil; used in catalyst of phosgene synthesis; as catalyst carrier for high mercury chloride, vinyl acetate synthesis, etc.

用途： 适用于气相吸附，催化剂载体和味精、柠檬酸、油类的脱色、精制以及光气合成用的触媒、氯化高汞、醋酸乙烯等合成工艺的触媒载体。

Synthesis of mesitylene by catalytic alkylation of mixed C9 arenes and isobutene;2. Synthesis of trimesic from liquid phase oxidation of mesitylene by air

能使感光材料增加感光性的一类染料。1873年发现在溴化银乳剂中加入菁染料后，可使乳剂在染料所吸收的光谱区域中产生新的感光性，从此菁染料在黑白胶卷、彩色胶卷及红外胶卷等感光材料工业先后获得广泛应用。

Utilization of carbon dioxide and propylene as starting material for direct synthesis of methacrylic acid has an attractive alternative to organic synthesis, environmental protect and utilization of carbon.

以CO_2和丙烯为原料直接合成甲基丙烯酸，在合成化学、碳资源利用和环境保护等方面均有重大意义。

The majority of them are produced by fermentation using microorganisms of different species identified as species belonging to Aspergillus, Monascus, Nocardia, Amycolatopsis, Mucor or Penicillium genus, and some are obtained by treating the fermentation products using the methods of chemical synthesis or they are the products of total chemical synthesis.

它们主要是用属于曲霉属，红曲霉属，诺卡菌属，Amycolatopsis，毛霉属或青霉属的不同物种的微生物通过发酵而生产的。有一些是用化学合成方法处理发酵产物而获得的或者有一些是全部化学合成的产物。

But because of the complexity and multiformity of the separation process synthesis itself, the actual theory and method can only solve some simple problems relatively, which exist lots of difficulties and deficiencies in the research of the separation process synthesis.

但是，由于分离过程本身的复杂性和多样性，目前的理论和方法还只能解决一些比较简单的问题，在分离过程综合研究方面还存在很多困难和不足。本文在分析分离过程本身特性的基础上，提出了一套分离过程综合的新方法。

But because of the complexity and multiformity of the separation-network synthesis itself,the actual theory and method can only solve some simple problems relatively,which exist lots of difficulties and deficiencies in the research of the separation-network synthesis.

但是，由于分离过程本身的复杂性和多样性，目前的理论和方法还只能解决一些比较简单的问题，在分离过程网络综合研究方面还存在很多困难和不足。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失