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The current theory and application of Al-Si alloy mainly focus on the study of hypoeutectic and eutectic, therefore we systematically analyzed the modification process of hypereutectic Al-Si alloy based on the methods and results of predecessors. Several factors including the modification temperature, the content of modifier, the available holding time, the times of repeat melting , the casting temperature and the speed for cooling have been studied in order to understand its effects to the composition, function and performances of primary silicon and eutectic silicon.

本文针对目前Al-Si合金相关应用和理论的研究多集中于亚共晶和共晶合金的情况，在前人的研究成果和研究方法的基础上，对过共晶Al-Si合金变质处理进行了较为系统的分析，研究了变质剂的成分配比、变质温度、变质剂的加入量、变质后的静置时间、浇注温度及冷却速度等因素对过共晶铝硅合金中初晶硅和共晶硅的大小、形状、数量和分布的影响。

Objective To observe the immunoregulatory effect of broken-BCG mucous membrane immune modifier BCG-b on the mice with experimental immune hypofunction.

目的 观察卡介苗溶菌黏膜免疫调理剂对实验性免疫功能低下小鼠的免疫调节作用。

In order to improve the solubility of the CNTs in solution without any structural damage, the surface-modified approach with noncovalent bond is considered. Anionic polyelectrolyte, poly(sodium 4-styrenesulfonate), used as modifier was applied to overcome the difficulty of CNT's dispersion into insoluble and infusible polymer matrix.

为了使奈米碳管在高分子基材中达到良好的分散性，又不会破坏其原始特性，本研究采用非共价键结表面改质的方式来进行奈米碳管之分散，研究中以阴离子型聚电解质，Poly(Sodium 4-Styrenesulfonate)，为奈米碳管分散剂。

Lubrification modifier of low sulfur diesel oil;2. The slag forming process and production of low sulfur pipeline steel X52 are described.

对低硫管线钢X52的冶炼造渣工艺和实际生产情况进行阐述，讨论了进一步开发利用LF炉冶金功能问题。

The small ubiquitin-related modifier family proteins are structurally and mechanistically related to ubiquitin.

小泛素相关修饰物家族蛋白是在结构和功能上与泛素相似。

The effect of REAlTiBP multicomponent composite modifier to alloy structure and property of cast aluminum 117 was studied.

研究了REAlTiBP多元复合变质剂对ZL117合金组织和性能的影响。

The determination of lead content in naphtha by graphite furnace atomic absorption spec-troscopy was studied with tetrahydrofuran as solvent, nickelous nitrate as matrix modifier and suitable amount of iodine solution added in samples.

将试样用四氢呋喃稀释，加入适量碘溶液，以硝酸镍为基体改进剂，研究了用石墨炉原子吸收光谱法直接进样测定石脑油中的铅含量。

Investigated the organic surface modification of anatase titanium dioxide pigment and its adsorption mode. It was founded that the surface hydroxyl groups are the active centers for olefinic acid. The adsorption of modifier fit Langmuir single molecule layer adsorption mode.

研究了锐钛型钛白的有机表面改性及表面吸附模型，认为表面羟基是有机烯酸表面改性的活性中心，改性剂在钛白表面的吸附符合Langmuir单分子层吸附模型。

A new material hybrid pennisetum as raw material for the wood-plastic composite material were prepared and a modifier was used to improve the flow quality of pennisetum straw powder.

以杂交狼尾草为原料制备木塑复合材料，采用木粉改性剂对狼尾草秸杆粉进行部分降解实现狼尾草秸杆粉的改性，改善木塑复合材料制备中材料的流动特性。

In short, HAPi,HAP2,HAP4,HAP5 didn't lead to plasmatorrhexis after they interacted with RBC, further, HAP5 with BSA ostensible modifier is ideal haemo-compatibility materials because it can maintain RBC's normal morphous and floaty nature.

而HAP_5纳米粒子均匀分散在细胞周围，未与细胞粘附，未见细胞变形，细胞形态正常。

Bob Eckert has been chairman and chief executive of Mattel for eight years.

美泰董事长兼首席执行官鲍勃·埃克尔特在任已8年。

The outlook for honors and disgraces carries on and surpasses the traditional outlook for honors and disgraces theoretically, and carries on and develops the theory of construction of socialist mora...

社会主义荣辱观的提出在理论上是对传统荣辱观的一次继承和超越，是对社会主义道德建设理论的继承和发展，在实践上有利于形成良好的社会风尚。