扩散

Excitation functions of neutron, proton and α particle emission prior to scission measured in the reactions 28 Si+ 164,167,170 Er→ 192,195,198 Pb are studied using an extensive fission diffusion model and it is found that the model can well describe the trend of particle multiplicities of Pb isotopes measured experimentally as a function of the bombarding energy,which indicates the existence of isotope effects in prescission particle emission.

用推广的裂变扩散模型研究了2 8Si+16 4，16 7，170 Er→192 ，195，198Pb反应中测量的断前中子、质子和α粒子多重性的激发函数。发现扩散模型能很好地拟合这些轻粒子多重性随裂变系统激发能和Pb同位素的变化趋势。表明断前粒子发射存在一个同位素效应。进而在一个考虑了裂变过程中摩擦效应的统计模型的框架内，在In和Er这两个元素的同位素链中，考察了同位素效应与裂变碎片质量不对称性和裂变系统尺度的关系。计算结果表明：同位素效应的存在不依赖于裂变系统的大小和不对称性。此外，当裂变系统具有高的中质比时，轻带电粒子发射将不再敏感于裂变延迟时间的长短，而中子发射则非常敏感。

Let me begin by saying that we remain disappointed in the continuing proliferant behavior of certain Chinese entities, and we remain deeply concerned about the Chinese government's commitment towards its nonproliferation obligations.

请允许我首先说明，我们仍然对某些中国实体继续从事扩散的行为表示失望，我们始终高度关注中国政府履行防扩散义务的问题。

While we have received repeated assurances from the Chinese that they oppose the proliferation of WMD materials, technology, and their means of delivery, we remain deeply concerned by the proliferant activities of its various entities.

尽管中国方面多次向我们保证，他们反对扩散大规模毁灭性武器的材料、技术及其运载工具，但一些中国实体的扩散活动仍受到我们深切关注。

Finally, an example of proliferative process adjustment model validated that proliferative process adjustment model was feasible and effective.

最后，以一个实例分析了扩散工艺的调整过程，验证了扩散工艺调整模型的实用性。

Antibiotic susceptibility tests were carried out by K-B diffusion method on 41 vibrio strains isolated for one year both from farming seawater (18 strains) and digestion guts (23 strains) of the cobia, Rachycentron canadum . We chose 10 different species of antibiotics and refered to NCCLS performance standards for antimicrobial susceptibility testing, while taking Staphylococcus aureus ATCC25923 and Esсheriсhia coli ATCC25922 to control the test.

选用常用的10种抗生素，通过纸片扩散法（Kirby-Bauer纸片扩散法，简称K-B法），参照NCCLS抗生素敏感试验操作标准，并以金黄色葡萄球菌 Staphylococcus aureus ATCC25923和大肠埃希菌Esсheriсhia coli ATCC25922为质控菌株，对周年监测分离自养殖军曹鱼水体及肠道的41株优势弧菌（水体菌18株，肠道菌23株）进行了药物敏感性研究。

The coupled model is more sensitive to phytoplankton maximum growth rate, respiration rate, death rate and zooplankton grazing rate, while other parameters such as half saturation constants and remineralization rate are insensitive ones.

虽然，从表面上来看，模型对垂向扩散系数的敏感度不大，但由于目前的湍封闭模型，尚不能很好地刻画扩散系数复杂的时间变化，这势必对生态系统的模拟有着较强的不确定性。

The behaviour of oxygen in the reoxidation process was investigated by an oxygen coulometry.

结果表明；氧流量计在升温阶段检测到三个不同行为的吸氧峰，峰Ⅰ（起始温度-250℃）为氧空位的填充过程；峰Ⅱ（起始温度-800℃）和峰Ⅲ（起始温度-1250℃）为还原相的氧化过程，具体来说，峰Ⅱ是通过晶界扩散提供氧使靠近晶界附近的区域被氧化；而峰Ⅲ是由晶格扩散过程控制，氧化过程从晶界逐渐向晶粒内部区域扩展，并伴随着富Ti的Ba6Ti17O40相的沉淀。

The plasticizer diffusion was obtained by Einstein equation. The diffusion coefficients 10-4 cm^2s^(-1 of dioctyl sebacate are respectively 0.0010, 0.0020, 0.0025, 0.0031, 0.0043 at the temperature of 273, 298, 310, 323, 348 K; and are respectively 0.0025, 0.0020, 0.0018, 0.0015 at the content of

环境温度为273，298，310，323，348K时，DOS在丁羟推进剂粘接体系中的扩散系数分别为0.0010，0.0020，0.0025，0.0031，0.0043；DOS含量为23%，37.5%，47%，60%时，扩散系数分别为0.0025，0.0020，0.0018，0.0015（单位10-4平方公分s^(-1)）。

The plasticizer diffusion was obtained by Einstein equation. The diffusion coefficients (10-4 cm2·s-1) of dioctyl sebacate are respectively 0.0010,0.0020,0.0025,0.0031,0.0043 at the temperature of 273,298,310,323,348 K; and are respectively 0.0025,0.0020,0.0018,0.0015 at the content of

环境温度为273，298，310，323，348 K时，DOS在丁羟推进剂粘接体系中的扩散系数分别为0.0010，0.0020，0.0025，0.0031，0.0043； DOS含量为23%，37.5%，47%，60%时，扩散系数分别为0.0025，0.0020，0.0018，0.0015(单位10-4 cm2·s-1)。

Finally, the article discussed the possible mechanism of multi-phase electrochemical degradation of wastewater through the XPS spectrum of the used catalysts surface: In the acid solutions, the electro-generated O_2 may get electrons on the porous graphite cathode and then form H_2O_2, H_2O_2 may diffused to the surface of catalyst and reacted with its active part to produce OH, which in turn can destruct organics. The catalyst functioned as both the catalyst to decompose H_2O_2 and the flocculants to sedimentate the degraded waste.

最后全文结合研究反应后催化剂表面的XPS光电子能谱推断了该体系降解污废水可能的反应机理：在酸性条件下，石墨双阳极产生的O_2被多孔扩散性石墨阴极还原成H_2O_2，并通过扩散传质作用在催化剂的表面活性中心分解为强氧化性中间产物·OH，强氧化性攻击有机物，使其降解为小分子有机物或CO_2和H_2O，催化剂在体系中即起催化作用也起吸附、絮凝作用。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。