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Phenol resin was modified by choosing cashew nut shell oil, polysulphone as modifier and adding other assistant.

以腰果壳油、聚砜为改性剂对酚醛树脂进行增强改性，将改性后的酚醛树脂通过湿缠绕方法和玻璃纤维粘合，制成了水润滑轴承外壳，并研究了玻璃纤维含量对水润滑轴承外壳压缩强度的影响。

Researches on Continuous Viscosity Determination in Polysulphone Production;2. Phenol resin was modified by choosing cashew nut shell oil, polysulphone as modifier and adding other assistant.

以腰果壳油、聚砜为改性剂对酚醛树脂进行增强改性，将改性后的酚醛树脂通过湿缠绕方法和玻璃纤维粘合，制成了水润滑轴承外壳，并研究了玻璃纤维含量对水润滑轴承外壳压缩强度的影响。

Paper introduces the sorts and request for design of optical antennas, choosing the cassegrain antennas based on the characteristic of space optical communication. The structure and work principle of cassegrain antennas are discussed, as well as the relation of parameters each other.

论文介绍了光学天线的分类和设计要求，根据空间光通信的特点选择卡塞格伦反射式天线，讨论了卡塞格伦天线的组成及工作原理，以及卡塞格伦天线参数之间的相互关系。

In choosing a name, he preferred one that carried a deep association in his memory, like Cassis.

在起名的时候，他喜欢用跟他的记忆有很深渊源的名字，就像"卡西斯"。

At the same time, combining with the actual condition of delivery pipeline of our country and some prevalent leak detection and location methods, this paper raised a method, which is based on wavelet analysis and negative- pressure-wave to detect and locate the leakage. Jobs in the paper are as follows:As affected by gas density, pressure, specific heat and pipe material, the velocity of negative-pressure-wave improved depending on the energy conservation. At one time, taking the affection of velocity of gas flow, the location formula was modified in some degree.When locating the leaks with location formula, the iterative approach algorithm was adopted as a new method to increase the location accuracy level of system.Multi-scale decomposition and reconstruction of wavelet transform is utilized to filter the noise of negative-pressure-wave, which was brought by leakage. With the capacity to detect the signal singularity fast and accurately, wavelet transform was used to catch the break point of pressure signal. The work improved the accuracy of At in location formula, accordingly improved the location accuracy.Wavelet is a suitable tool for signal analysis. The distinct character is that the mother-wavelet is of optional. That means choosing different mother-wavelet will get different analysis result. So we studied how to choose mother-wavelet and its scale for signal singularity detection. The method is to choose a wavelet by regularities of the wavelet and the signal.Finally, a plan, which bases on SCADA system for inspection and detection of natural gas leakage, is proposed in the article.

其中，主要进行了以下几方面的工作：针对泄漏产生的负压波在管道中的传播速度受媒介的密度、压力、比热及材质等因素的影响，而非声波在空气中传播的速度，本文利用能量守恒原理，对其进行了修正；考虑到管内气体流速对压力波速的影响，对原始的负压波定位公式进行了一定程度的改进，并在利用定位公式进行泄漏点定位时采用逐步迭代逼近算法，提高了系统的定位精度；利用小波变换的多分辨率分解和重构技术，对采集到的管道发生泄漏时产生的负压波信号进行了降噪处理；并利用小波变换技术对信号奇异点的快速、准确的识别能力，对经上述消噪后的负压波信号进行了奇异点捕捉，精确捕捉的结果提高了定位公式中上下游站点采集到的负压波奇异点的时间差△t的精度，从而进一步提高了定位的精度；考虑到小波变换是一种基波可变的信号分析工具，也就是说，不同的小波基波对信号分析的结果将有很大差别，这势必影响最终的处理结果，因此，我们又对比分析了本课题中小波基及尺度的选择问题，依据规则性系数相似性原理对母小波的选择进行了探索性研究；最后，还提出了基于SCADA的泄漏检测与定位系统的软件开发构想及系统的嵌入方案。

Choosing a good caterer is crucial to having a wedding that your guests are sure to enjoy.

选择一个良好的饮食是至关重要的一个婚礼，您的客人是一定要享受。

All in all, My dissertation mainly focuses on phenomena existing in Chinese venture capital investment market with double principle-agent theory. According to actual conditions, we think that shareholders who are full of wishes to supervise the daily management of the venture capital should be nurtured. Another, the evaluation system with government as cautioner, the incentive and restrictive mechanism implemented and anonymous assess as trait in the beginning of process should be improved uninterrupted. Last but not least, in the choosing of exit ways of the venture capital, the MBO method is one that couldn't be ignored.

并在探究两层委托代理互动关系的基础上，针对我国风险投资市场委托代理中的主体缺位、政策滞后等问题，提出要明确风险投资领域宏观与微观环境建设的政府责任与企业责任：在风险资本市场，要大力宣传和鼓励以民营资本为代表的积极股东的参与；在风险投资项目评估中，应当不断完善以政府担保为主体的、贯彻激励约束机制的、以专家匿名评审为特点的项目评估体系；在风险资本退出模式中，我们强调要更加重视MBO方式对风险投资事业的积极作用。

By choosing to observe stars that are known as Cepheid Variables he could more accurately make measurements.

通过有选择地观察恒星被称为cepheid变数，他能更准确地进行测量。

That is fine as long as they are choosing cereals that are low in sugar and high in fiber.

如果他们选择的谷物是低糖高纤维的话，那的确是个不错的选择。

You can easily change the formatting of selected text in the document text by choosing a look for the selected text from the Quick Styles gallery on the Home tab.

在"主页"选项卡上，通过从快速样式库中为所选文本选择一种外观，您可以方便地更改文档中所选文本的格式。

I can still vividly recall the impressive scenes you gave. You were among my friends and relatives who accompanied me from my house to the seaport and when the porters were slow to show up, you obligingly carried my suitcase for me.

你对我的种种感人情意，使我记忆犹新，那天你随着我的亲友从家里送我上轮船，搬运工迟迟不来，你毅然替我提着皮箱上船。

St. Nicholas became the patron saint of Russia, where he was famous for his red cape, flowing white beard, and bishop's mitre.

圣尼古拉成了俄罗斯人的守护神，在那里，他以身披红斗篷，留着飘逸的白胡须，戴着主教法冠而闻名。