单体

The results show that increasing the solids loading of slurry up to 45% allows minimizing deformation of green sheets during drying and sintering process effectively. When the content of monomers in shurry is 2%-4%, and the content of plasticizer in shurry is 3%-6%, green sheets with good strength and flexibility are obtained. The microstructures and the electric characteristics of PTCR chip thermistors were investigated. A five-layer chip PTCR thermistor with room resistance of 0.8Ω, temperature coefficient of resistance of 13.40%/℃, and ratio of maximum to minimum of resistance larger than 10^5 is successfully fabricated.

研究表明：浆料固相体积分数对坯体的乾燥及烧结行为有较大影响，当浆料固相体积分数在45%以上时，可有效避免制品乾燥和烧结过程中收缩过大而产生的变形开裂缺陷；当有机单体的质量分数为2%~4%，丙三醇的体积分数为3%~6%时，可获得有一定强度和柔韧性的生坯；研究了注凝成型PTCR陶瓷的微观结构及陶瓷元件的PTCR性能，成功地制备了层数为5、室温电阻为0.8Ω、电阻温度系数为13.40%/℃、升阻比大於10^5的多层片式PTCR元件。

The results show that increasing the solids loading of slurry up to 45% allows minimizing deformation of green sheets during drying and sintering process effectively. When the content of monomers in shurry is 2%-4%, and the content of plasticizer in shurry is 3%-6%, green sheets with good strength and flexibility are obtained. The microstructures and the electric characteristics of PTCR chip thermistors were investigated. A five-layer chip PTCR thermistor with room resistance of 0.8 Ω, temperature coefficient of resistance of 13.40%/℃, and ratio of maximum to minimum of resistance larger than 105 is successfully fabricated.

研究表明：浆料固相体积分数对坯体的干燥及烧结行为有较大影响，当浆料固相体积分数在45%以上时，可有效避免制品干燥和烧结过程中收缩过大而产生的变形开裂缺陷；当有机单体的质量分数为2％~4%，丙三醇的体积分数为3％~6%时，可获得有一定强度和柔韧性的生坯；研究了注凝成型PTCR陶瓷的微观结构及陶瓷元件的PTCR性能，成功地制备了层数为5、室温电阻为0.8 Ω、电阻温度系数为13.40%/℃、升阻比大于105的多层片式PTCR元件。

Good yield of the pure monomer bis(2-hydroxyethylene terephthalate) was obtained.

良好的收益率的纯单体二（ 2 - hydroxyethylene对苯二甲酸乙二醇酯）获得。

At this point esch chromosome consist of a pair of chromatids and the two associated chromosomes are termed a tetrad.

此时每条染色体由一对染色单体构成，这两条联合的染色体称为四分体。

The solid finite element model of the knuckle has been built using a second order solid tetrahedron element.

这一坚固的转向节模型是由坚固的二级四面体单体元素做成的。

The problem in terms of theory about failure correlation is discussed initially.

在研究系统的可靠性时，还对各单体之间的失效相关性这一理论难题进行了初步的探讨。

On the basis of analysis of developing background and theory of thermoelectric graded materials, p-type (Bi1-0.85Sb0.85)Te3 and PbTe two segments thermoelectrical graded materials with different barriers were fabricated by conventional hot-pressing process.

在分析了热电材料的发展背景和研究理论的基础上，采用热压法制备出单体和双层具有不同扩散势垒的1-0.850.8与PbTe体系二元梯度热电材料。

ZHOU Zhangjian（Laboratory of Special Ceramics and Powder Metallurgy, USTBeijing, Beijing, 100083, China）Abstract:On the basis of analysisof developing background and theory of thermoelectric graded materials, p-type (Bi1-0.85Sb0.85)2Te3and PbTe two segments thermoelectrical graded materials with different barriers werefabricated by conventional hot-pressing process.

具有不同扩散势垒的p型(Bi1-0.85Sb0.85)2Te3和PbTe二元梯度热电材料的研制徐桂英葛昌纯高艳平周张健摘要：在分析了热电材料的发展背景和研究理论的基础上，采用热压法制备出单体和双层具有不同扩散势垒的(Bi1-0.85Sb0.85)2Te3与PbTe体系二元梯度热电材料。

PBE possesses a good ability of anti-hydrolysis, and its thermolysis temperature may reach 320℃, the heat stability of which is better than that of MBE.

PBE抗水解性能强，热分解温度可达320℃，稳定性相比单体MBE有所提高。

Effects of various factors on the properties of thickener were studied.

研究了活性单体、交联剂、反应时间等因素对产物性能的影响。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐