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The granularity and the crystalline degree of the powders were all lower relatively with increasing the concentration of the reducing agent.

随还原剂浓度的增加，粉末的粒度和晶化程度均有减小的趋势。

The milled powders were sintered in a vacuum hot-pressing furnace in a reducing atmosphere.

经机械合金法制备之粉末，在还原性气氛中热压烧结制成块材。

The long refectory table that spanned the length of the near wall was littered with fluted glass tubes, boxes, and cloth sacks of powders and pungent salts, as well as intricate structures of wood and metal from which depended retorts and phials and other unrecognizable containers.

和旁边的墙壁一样长的餐桌上，乱七八糟放着槽纹玻璃管子、盒子、装着粉末和味道刺鼻的盐的布袋，还有结构错综复杂的木头、金属制品，也说不清是曲颈瓶还是药瓶。还有别的认不出来是什么的容器。

The results show that MnO2 powders have a self-grown core-shell structure with diameters of 3～5 μm, the real and the imaginary part of the complex relative permittivity are 8.40～5.35 and 2.66～2.07, respectively, whereas the real and imaginary part of the complex permeability are as small as 1.04～1.14 and 0.03～0.21, respectively.

结果表明：所制得粉体是直径3～5 μm的核壳结构海胆球形MnO2，其复介电常数实部在8.40～5.35，虚部在2.66～2.07；复磁导率实部和虚部都很小，分别在1.04～1.14和0.03～0.21范围内。

Typically the resinous or oily substances are balanced with "dry" materials such as wood, bark and leaf powders.

比较典型的是树脂质的或油质的物质与象木头，树皮和植物叶的粉末这类干物质在量上相当。

The rhodamine B dye-sensitized anatase TiO2 powders were prepared at low temperature (60 to 80℃) in this work.

采用溶胶－凝胶法在低温(60~80℃)下制备得到罗丹明B染料敏化的锐钛矿型TiO2粉体。

The morphology, size, composition of rutile TiO2 powders were studied by means of TEM, ICP and XRD.

利用TEM、XRD、ICP对粉体粒子的形貌、大小、物相及化学组成进行了分析。

The results indicated the highest yield of nano-meter sized SiC powders can be achieved when the mole ratio of de-ionized water to TEOS was 4: 1 and the saccharose was introduced after TEOS.

研究结果表明，当水解用水与TEOS的摩尔比为4：1，蔗糖在TEOS之后引入时，可以获得最高的纳米SiC产率。

Compared with other methods, the present solvent thermal method can produce ITO nano-powders with high purity and uniform particle size. The manipulation is very simple and convenient and no calcination process is needed. The reaction temperature can be as low as 190 ℃, which is by far the lowest temperature in ITO nano-powder preparation. The sample also gives a good dispersion property benefited from the unique solvent thermal reaction environment.

结果表明，制备的ITO纳米粉体为立方晶相，粉体的平均颗粒小于100 nm；与已有的ITO纳米粉体制备方法相比，本溶剂热法制备过程无需高温烧结、流程简单，反应过程所需的温度可低至190 ℃，是迄今为止文献报导制备ITO的最低温度，同时所得产物纯度高、粒度均匀、分散性很好。

The Scandia doped tungsten powders were made by both liquid –solid doping method and liquid-liquid doping method on the basis of previous research.

研究表明在改进压制、烧结技术的基础上，可以获得具有适当孔度的亚微米结构多孔基体。

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