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hollow sizes
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  空心度
     By using finite element method, the equivalent stress and contact stress in the danger zone under different hollow sizes are calculated.
     采用有限元分析方法,对不同空心度下的滚柱轮最危险区域的等效应力和接触应力进行了详细计算。
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  相似匹配句对
     Hollow Waveguides
     空芯光纤
短句来源
     Hollow Man
     透明人
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     RESULTS The sizes of E.
     结果 原子力显微镜结果表明E.
短句来源
     On the Sizes of the Viola
     关于中提琴尺寸问题的一些思考
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     Using the synthesized gratings with different orders, hollow beam of different sizes is obtained.
     利用不同阶次的位错光栅得到了不同暗斑尺寸的中空光束
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This paper calculates the extra force,that is causd by a driving automobile on unsmooth highway onto pavement, and analyses the relationship among the extra force,the automobile type,speed of automobile, hollow size of pavement. Therefrom the reason of the forming and developping of hollows on pavement is analysed.

本文分析计算了汽车行驶在坑糟路段时对路面产生的附加力,并分析了车型,车速及坑槽尺寸与附加力的相关性。从而提出了坑糟的形成及加剧的初步原因。

Poly(styrene-butyl acrylate-methacrylic acid)(St-BA-MA) latex particles were synthesized by seeded emulsion polymerization. Final latex was treated by a two-step treatment under alkaline and acidic conditions and then hollow latex particles were obtained. The effects of ratio of different monomers St and BA and monomer MA concentration on the diameter,the hollow size and the amount of surface carboxylic group of latex particles were examined.The results showed that the hollow latex particles...

Poly(styrene-butyl acrylate-methacrylic acid)(St-BA-MA) latex particles were synthesized by seeded emulsion polymerization. Final latex was treated by a two-step treatment under alkaline and acidic conditions and then hollow latex particles were obtained. The effects of ratio of different monomers St and BA and monomer MA concentration on the diameter,the hollow size and the amount of surface carboxylic group of latex particles were examined.The results showed that the hollow latex particles with largest hollow size could be obtained under certain conditions that ratio of monomers St and BA was 19 and monomer MA concentration was 5.6%.

研究了在制备中空乳胶粒子的过程中,复合乳液[苯乙烯(St)-丙烯酸丁酯(BA)-甲基丙烯酸(MA)]进行种子乳液聚合时,St/BA的质量比和MA的用量对胶乳粒子的空径、粒径和表面羧基质量摩尔浓度的影响。实验结果表明,当St/BA的质量比为19,MA质量分数为单体的5.6%时,形成的乳胶粒子的空径最大。

Hollow latex particles were synthesized by seeded emulsion polymerization, thus, a seed latex consisting of styrene(St), butyl acrylate(BA) copolymer was first prepared, and seeded terpolymerization of St BA MA(methacrylic acid) with divinely benzene as cross linking agent were then carried out in the absence of surfactant. Final latex was then treated by a two step treatment under alkaline and acidic conditions, particles with hollow structure were obtained. The effect of initial pH value, temperature...

Hollow latex particles were synthesized by seeded emulsion polymerization, thus, a seed latex consisting of styrene(St), butyl acrylate(BA) copolymer was first prepared, and seeded terpolymerization of St BA MA(methacrylic acid) with divinely benzene as cross linking agent were then carried out in the absence of surfactant. Final latex was then treated by a two step treatment under alkaline and acidic conditions, particles with hollow structure were obtained. The effect of initial pH value, temperature and time in the process of alkali treatment the first step in the information of the hollow structure within the paritcles on the diameter, the hollow size and the amount of surface carboxylic group of latex particles were studied. The results show that hollow latex particles with the largest hollow size can be obtained in a certain condition(pH 12.5, temparature 90 ℃, time 3 h).

通过间歇无皂种子乳液聚合 ,制得具有一定交联度的聚 (苯乙烯 (St) -丙烯酸丁酯 (BA) -甲基丙烯酸 (MA) )复合乳液。将稀释后的乳液进行碱 -酸阶段处理 ,得到了粒度均一的、中空结构的乳胶微粒。主要研究了在碱处理过程中 p H值、温度、时间对粒子的空径 (粒子中空的大小 )、粒径及表面羧基含量的影响。结果表明 ,碱处理条件为 p H=12 .5,t=3h,T=90℃时形成的胶粒粒子的空径最大

 
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