材料

Results (1) The complex of cells and scoffolds suspended in themedium at first, sunk at the bottom of medium after 2 days. Some cellsmay overglow scoffolds, but the tenacity was increased and the surfacewas lenitive in the induced groups.(2) Scanning electron microscopeshowed many spherical cells distributed in pores and on the surface of thescaffolds.

结果(1)脂肪间充质干细胞接种在PLGA材料复合培养时，初起细胞／材料复合体悬浮于培养基中，2天后渐沉入培养基底部，诱导组复合体表面逐渐光滑润泽，质地逐步增韧，倒置显微镜下可见有少量细胞溢出支架材料并附壁生长。

The main content of this thesis includes: studies on the preparation, surface-modification mechanism and electrochemical performance improvement of spinel LiMn〓O〓; Preparation and properties of 5V cathode materials 〓; Physical properties and electrochemical performance studies on layered 〓 for lithium ion batteries.

本论文的主要研究内容包括：正尖晶石LiMn〓O〓的制备、表面修饰改性机理以及电化学性能的改善；具有正尖晶石结构的5伏正极材料〓的合成与性能探索；具有层状结构的镍锰基化合物〓的物理性质与其作为锂离子电池正极材料的电化学性能以及该材料的产业化探索。

High oil absorption resins of higher n-alkyl acrylates modified cotton linter were synthesizedby supension graft copolymerization. The effects of the ratio of n-alkyl acrylates to linter, the kinds and amounts of crosslinker, the amounts of initiator, as well as reaction temperature and time on oil absorbency were investigated.

以棉短绒为基材，丙烯酸长链酯为单体，双丙烯酸二元醇酯为交联剂，采用悬浮接枝共聚法合成了高吸油性材料，考察了棉纤维与单体的投料比、交联剂种类与用量、引发剂用量、聚合反应温度与时间等因素对该材料吸油性能的影响，得到了不同丙烯酸长链酯与棉纤维接枝聚合制备吸油材料的最佳工艺条件。

The second section:(1) A new kind of paper for LOM is developed by changing the prescriptions of hot molten glue, and properties of the new paper are as good as those of LOM paper from the U. S. A.(2) The testing methods and items for examining the properties of LOM raw materials are provided first of all.

第二部分：对LOM原型材料中的热熔胶进行了改性研究，开发成功了一种与美国进口LOM纸性能相接近的LOM纸，基本解决了LOM叠层材料国产化问题，并首次提出了LOM原型材料性能的测试指标和测试方法。

The experiment study about the subcritical normalizing holding temperature effects the macrostructure and hardness of the 40SiMnCrNiMoA steel shows: When subcritical normalizing holding temperature is 760℃, the ferrite in the mixture phase structure is lumpish, the hardness of the steel is low (about HRC32), and when the holding temperature is over 800℃, the hardness of the steel is about HRC49, the ferrite in the mixture phase structure is in old critical range austenite grain boundaries, it is disadvantage for the steel strengthening. When the holding temperature is 780℃, the mixture phase structure is mixture phase structure including the strip ferrite、martensite and bainite, the ferrite is less than 20%wt, its grains are fine and even, the hardness of the steel is about HRC38, it is in the range of HRC35-40 which is the long-life drill rod needed.

亚温正火温度对40SiMnCrNiMoA的组织和硬度等性能的影响的实验研究表明，当亚温正火保温温度为760℃时，复合组织中的铁素体形态是块状，处理后的材料硬度相对较低（HRC32左右）；而当采用大于800℃温度亚温正火处理，材料硬度为HRC49左右，组织中铁素体大部分较连续地存在于原奥氏体的晶界，对材料强化不利；当40SiMnCrNiMoA钢780℃亚温正火后，硬度为HRC38左右，在以往小钎杆较长寿命所需硬度范围HRC35-40内，而组织为细条状铁素体+以板条马氏体和条状无碳贝氏体为主的复合组织，晶粒细小均匀，铁素体体积含量少于20％。

BACKGROUND: Scaffold materials of tissue-engineered tendon can be divided into synthetic macromolecule materials and natural extracellular matrix materials.

摘要背景：肌腱组织工程中应用的支架材料大致分为合成高分子材料和天然细胞外基质材料两类。

Microstructure of the polymer films plays a crucial role on the macrophysics characterization, so with the development of the separate technique of the membrane, the study of microstructure is provided with a quite important meaning on the development of the various membrane materials with high capability, and has already become a main studied topic.

聚合物膜材料的微观结构对其宏观物理性能起关键作用，因此随着膜分离技术的发展，膜材料微结构的研究对研制高性能、多种类的膜材料具有十分重要的意义，已经成为膜科学的一个主要研究课题。

And the application of the modifier in the magnesite products is described.

本文指出，镁质胶凝材料是一种优缺点都很突出的材料，分析了菱镁改性剂的主要作用和最新研究方向，概括了改性剂在镁质材料中的应用。

Magnetic material is the main pillar material of modern industry, the development of global magnetism material is very rapid.

磁性材料是现代工业的主要支柱材料，全球磁性材料的发展极为迅速。

Fe-Zr-B amorphous alloy is an important soft-magnetic material, which has important applications in preparation of transformer, magnetic recorder, electromagnetism disturbing shield and so on.

Fe-Zr-B 非晶合金是一种良好的软磁性材料，在变压器设备、磁性记录材料、电磁干扰屏蔽材料等领域有着重要的应用。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！