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The results show that the microscopical pore structure of the three dimensional orthogonal woven carbon fabric structure perform is composed of body-centered cubes which arranged periodically at spaces. The net structure and shape of the pores of perform are determined by the size and proration of the fasciculus diameter, which are key factors influencing the gaseous permeability and final density of composites. Once the proration of the fasciculus diameters of different directions is determined, the trend of diversification of the permeability followed by pore rate during CVI process and the density of composites are stated, and the permeability increases with the increase of the fasciculus diameter.

研究结果表明：三维正交结构炭纤维预制体的宏观孔隙结构在空间上可以看成是由呈周期性排列的体心立方&晶胞&构成； X ， Y 和 Z 3个方向纤维束直径大小及比例关系决定三维正交结构炭纤维预制体宏观孔隙网络的结构和形状，也是决定反应气体在孔隙中的比渗透率和复合材料最终致密度的重要因素；当 X ， Y 和 Z 3个方向纤维束直径的比例关系一定时，不同预制体在CVI增密过程中比渗透率随孔隙率变化的趋势相同；复合材料的最终致密度一定；比渗透率随纤维束直径增大而略有增大。

While Ni(NO3)2 and Mg(NO3)2 were used as ushers of the catalyzers, carbon nanotubes were prepared by catalyst-assisted CVD in different ratios of gaseous mixture, which were analyzed with TEM, SEM and Raman spectrograph.

将Ni(NO3)2-Mg(NO3)2体系作为催化剂前驱体，在不同气源比例下用CVD催化裂解法制备纳米碳管，用SEM、TEM和喇曼光谱对其进行了表征和分析，制备出完整性好的纳米碳管。

While Ni(NO3)2 and Mg(NO3)2 were used as ushers of the catalyzers, carbon nanotubes were prepared by catalyst-assisted CVD in different ratios of gaseous mixture, which were analyzed with TEM, SEM and Raman spectrograph. The results show that carbon nanotubes prepared in CH4/H2=250/50=5/1 are pure and intact.

将Ni(NO3)2-Mg(NO3)2体系作为催化剂前驱体，在不同气源比例下用CVD催化裂解法制备纳米碳管，用SEM、TEM和喇曼光谱对其进行了表征和分析，制备出完整性好的纳米碳管。

We used a Mode l PS-1 PUF Sampler (Graseby GMW, Village of Cleves, OH, USA) to collect samples of total suspended particulate and n-alkanes in the gas phase. Particles were collected on quartz fiber filters. Gaseous n-alkanes were adsorbed by PUF and XAD-2 in a cartridge placed downstream of the filter holder in the sampler.

本研究使用Model PS-1 PUF采样器，以石英纤维滤纸收集总悬浮微粒，并在滤纸下游以 PUF及XAD-2吸附气相中的半挥发性有机成分。

To study high temperature corrosion behavior on materials during solid waste incineration, laboratory corrosion tests were performed to iron, cast iron, 20# carbon steel, stainless steel in oxidizing gaseous environments which included O〓, SO〓, H〓O, HCl, Cl〓and some ashes coming from self-designed incinerator, the Xunde's one and synthetic ashes. The synthetic ashes are used as corrodents composed of chlorides , sulfates and oxides.

最后，本论文为揭示材料垃圾焚烧过程中的高温腐蚀行为，借助于腐蚀重量实验，X-射线衍射仪，扫描电子显微镜，电子能谱等分析测试手段，研究了铁、铸铁、20#碳钢和不锈钢在垃圾焚烧环境中的高温腐蚀行为及腐蚀动力学。

We addressed the systematic errors originated from the synchronized photoelectron beams, which desorbs quite a few gaseous molecules adsorbed on the vacuum chamber walls, in mesuring the base pressure of the large storage ring of Beijing electron positron collider.

当BEPCⅡ储存环的束流突然丢失时，真空计和离子泵的压力测量值都先有一个瞬时的减小，之后才逐渐降低到本底压力。

Below monolayer exposure, BrCH2CH2Br will decompose to gaseous C2H4 . Between 0.5-6L exposures, C2H4 desorbs at ~210K and among 2L exposure, C2H4 desorbs at 130K.

单分子层以下的BrCH2CH2Br曝露量，BrCH2CH2Br会在表面上分解形成C2H4脱附，曝露量0.5-6L时，C2H4有~210K的脱附峰，曝露量在2L以上时，C2H4有130K的脱附峰。

Processes using composite materials in accordance with the invention are, for example, used for production of synthesis gas comprising carbon monoxide and molecular hydrogen which synthesis gas is, advantageously, free of deleterious and/or inert gaseous diluents such as nitrogen.

应用按照本发明的复合材料的工艺是，例如，生产包括一氧化碳和分子态氢的合成气，其中合成气的优点是没有有害和／或惰性气体如氮气的稀释。

Previously, gaseous fluorides resulting from this process were discharged directly into the atmosphere.

过去，由此生成的气态氟化物直接排入大气。

Gas Carbon Adsorption Systems are designed to remove certain gaseous contaminants, including Dioxins/ Furans, Hydrogen Sulphide, Hydrogen Chloride, Ammonia and Mercaptans.

气体活性炭吸附系统去除某些气态的污染物，包括二氧芑/呋喃，氢硫化物，氢氯化物，氨和硫醇。

These rules reflect some inherent feature of self and nonself, and they are the basic detection criterion of GECISM.

这些规则反映了"自我"和"非我"的内在特征，是GECISM进行"非我"检测的判据。

Until today, the media from China and the outside world still uses the term "Post 89". Regardless to whether it is for commercial gimmick or convenience, everybody still remember "Post 89", a term which carries a strong Cantonese accent.

时至今日，国内外艺术媒体还是在沿用&后八九&这个称谓，不管当初是为了商业噱头还是容易上口好记，反正大家现在是记住了&后八九&这个广东口音很重的词。