• 以聚偏氟乙烯(PVDF)为第二组分聚合物与三醋酸纤维素(CTA)共混,通过冻胶法纺丝工艺制备成中空纤维纳滤膜。

    Hollow fiber NF membrane was prepared with blending of PVDF as the second component polymer and CTA, and by spinning process with gelation method.

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  • 圣弗朗斯西科联邦聚新预测,肯定了美国明年前期经济下降1到2个百分点的可能性,其大部分源于国际市场冲击的危险。

    Indeed, a new estimate from the San Francisco Fed pegs the odds of an American recession early next year at about 1 in 2, thanks largely to the danger of international shocks.

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  • 在第二部分中,如果刚刚打印出来的聚类和shapefile节点是主节点,那么退出主循环并且不要编写边或链接信息。

    In the next section, if the cluster and shapefile node that has just been printed is the home node, exit the main loop without writing edge or linkage information.

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  • 每一部分都重要,因为大是由小组合而成的:细小的水分子可以聚成大海洋,而广阔的沙漠则是由细小的沙粒形成。

    Everything is important because the big things are made up of smaller things: the great sea is formed by small particles of water, the vast desert is formed by tiny particles of sand.

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  • 论文主要包括五部分内容:论文的第一部分概述了低聚表面活性剂研究的意义,并综述了低聚表面活性剂的研究进展。

    This thesis consists of five parts. In the first section, the importance and the progress of studies on oligomeric surfactant are summarized.

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  • 聚苯硫醚是一种具有许多优良特性的工程塑料,其应用十分广泛。

    Polyphenylene sulfide is a kind of engineering plastic with many excellent characters, and it 's used widely.

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  • 研究结果表明,以分形理论为基础对股票进行聚类,同一类股票具有极强的相似走势。

    Study result expressed that the stocks in the same kind have extremely strong similarity in movement after they are clustered with fractal theory.

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  • 首先利用高效的二分K均值聚类进行粗略量化,然后使用基于加权距离的谱聚类进行再次量化。

    Firstly, on bisecting K-means is used to quantize image roughly and then we refine the image by improved spectral clustering based weighted distance.

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  • 四种聚类图都反映了品种的系谱来源,类群划分与系谱并不十分吻合。

    All the four cluster could reflect the pedigrees of the cultivars in some degree but is not very anastomose.

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  • 利用灰色系统中的灰色聚类方法,并结合数学、力学知识,对大坝在各种荷载组合作用下的安全性态作了分评价。

    Utilizing the grey clustering method, mathematics and mechanics knowledge, the safety states of DAMS under typical load combinations are analyzed and evaluated.

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  • 油田经过聚驱开发后,油层动用程度得到了较大的改善,但聚驱后仍存在一部分剩余油。

    After polymer flooding, producing performance of oil layers is greatly improved, but there still exist some remaining oil after polymer flooding.

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  • 第二种方法是基于时差分模糊熵聚类的运动变化区域检测算法。

    Other way is the motion-changed region detection algorithm based on fuzzy entropy clustering in time-differenced image .

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  • 方法建立随机扩增多态性DNA聚丙酰胺凝胶电泳(RAPD-PAGE)指纹分型法;

    Methods To establish a fingerprinting method by random amplified polymorphic DNA and polyacrylamide gel electrophoresis (RAPD-PAGE).

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  • 由于原始的模糊c -均值聚类算法没有考虑图像的空间信息,算法对图像中的噪音点十分敏感。

    Without considering the spatial information of images, the original fuzzy C-means algorithm is very sensitive to image noise.

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  • 采用苯甲酸改性的醇酸树脂和混合醚化的三聚氰胺甲醛树脂为基料,配以适量的锤纹助剂制成高固体分低温快干型氨基锤纹漆。

    The high-solid fast drying amino hammer paint is prepared with benzoic acid modified alkyd resin and etherified melamine-formaldehyde resin as binder, hammering agent and other components.

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  • 在过去的几年中,从分子遗传学水平对抗生素生物合成的研究进展十分迅速,尤其在聚酮、多肽和氨基糖的研究方面更是硕果累累。

    Last few years have seen the rapid and exciting progress towards genetic understanding of antibiotic biosynthesis, especially to that of polyketide, polypeptide and aminosugar biosynthesis.

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  • 该方法可将注聚用水量的五分之四替换成污水。

    Four fifth fresh water could be replaced with produced water by using this way.

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  • 研究了具有三分支结构的八极矩分子和低聚物。

    The electronic structure, OPA and TPA properties were studied in detail.

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  • 工业级磷铵用途十分广泛,可用作干粉灭火剂材料、阻燃剂聚磷酸铵、饲料添加剂等。

    The use of MAP of technical grade is very extensive: material for fire exting chemical , ammonium phosphate as fire exting chemical, additive in forage and so on.

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  • 采用MDI、PAPI、HDI、IPDI等不同的异氰酸酯和聚酯多元醇、聚醚多元醇等反应,制备高固体分的聚氨酯弹性体预聚物。

    A high solid elastic polyurethane prepolymer has been prepared based on MDI, PAPI, HDI, IPDI and polyester polyols and polyether polyols.

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  • 神乃是呼召他踏上一个信心的旅程,这是神招聚祂的子民的其中一部分计划。

    He was called to a faith journey that was part of God's plan to gather his people.

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  • 前言:目的:采用流行病学的调研方法和聚类的统计方法,对胃炎(胃脘痛)的临床证候进行中医分型。

    Objective: to take the ways of epidemiological investigation and cluster analysis to classify syndrome of gastritis (Weiwantong).

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  • 研究发现环状聚芳醚酮齐聚物熔融温度低,熔体粘度小,具有良好的流动性,十分有利于充模成型及浸渍增强纤维。

    The melt viscosity of the cyclic oligomer is very low which is necessary to impregnate the carbon reinforcement well.

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  • 通过微观观察及分形维数计算结果分析聚苯酯铝硅封严涂层失效原因。

    Through microscopic observation and calculation of fractal dimension the seal coating failure of Al-Si.

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  • 结果表明:这种结晶添加剂能减少种分溶液中细粒子数,加强附聚作用的进行,粗化产品粒度,提高产率。

    Results showed this additive reduced the quantities of smaller particles, intensified the agglomeration process, increased the particles size and enhanced production rate of products.

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  • 提出小电流接地系统实现单相接地故障定位的新方法。该方法应用基于聚类的FSVM和电流注入法分两步实现故障定位。

    Based on clustering FSVM and current injection method, a new method using two steps for single-phase grounding fault location of distribution feeders in networks with ungrounded neutral is proposed.

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  • 电子设备用固定电容器。第20-1部分:空白详细规范:金属化聚苯硫醚膜介质直流片式固定电容器。评定水平EZ。

    Fixed capacitors for use in electronic equipment - Part 20-1: Blank detail specification: Fixed metallized polyphenylene sulfide film dielectric chip d. c. capacitors. Assessment level EZ.

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  • 聚类是数据挖掘中很重要的一部分。

    It is important that the data be verified.

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  • 聚类是数据挖掘中很重要的一部分。

    It is important that the data be verified.

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