孔

This method of printing plate made of mesh size is the same, to the product with depth different expression business card printing and membership card making products.

该方法制成的印版网孔面积相同、以网孔深度不同表达制卡和会员卡制作品的层次。

The MCM-41 and SBA-15 mesoporous molecular sieves with ordered structure and high surface area were synthesized by template method. Dynamic adsorption of toluene, o-xylene, mesitylene on the mesoporous molecular sieves were studied.

采用模板剂法制备了孔道规整、大比表面积的2种介孔分子筛MCM-41和SBA-15，并以甲苯、二甲苯、三甲苯为吸附对象，考察了介孔分子筛动态吸附VOCs的性能。

The relation between nucleation of metastable pits and growth of stable pits was discussed.

讨论了正稳孔的生长与稳定蚀孔形成之间的关系。

Mesoporous molecular sieves, named SAN-01, were hydrothermally synthesized with microcline, a natural ore, as starting material, and the seeds of 13X zeolite as pore-wall＇s crystal source.

以微斜长石制备的硅铝酸盐前驱物为主要原料，以13X沸石晶核剂为孔壁结构导向剂，水热合成了含有13X沸石基本结构单元的硅铝酸盐介孔分子筛SAN-01。

We also propose form the viewpoint of micromechanics the condition of instability of the microstructure of porous materials and apply it to the analysis of the internal void-necking fracture process.

同时本文还从细观力学的角度出发建立了含微孔材料连续介质微结构的失稳条件，并以此为基础对延性金属材料的微孔内颈缩断裂进行了分析。

］ In order to study the effect of machining processes on the surface condition of fastening holes drilled on 7075 aluminum alloy for aircraft assembly, the surface microphotograph and surface layers microstructure produced by the five kinds of drilling processes were observed and analyzed by means of SEM and optical microscope.

摘 要］为研究加工工艺对7075-T7351铝合金飞机装配紧固孔表面质量的影响，通过扫描电子显微镜和光学显微镜，分别对5种不同制孔工艺所产生的表面微观形貌和表层组织变化进行了观察和分析。

In this paper,the method of machining of micropore by electric spark was introduced.

介绍了电火花微孔加工方法，着重对加工参数、工具电极的制备以及对加工中应注意的问题进行了探讨，成功地在厚80μm的不锈钢板材上加工出128个直径55μm的微孔。

And the ratio of micropore area to surface area increases too.

结果表明，制得的活性焦比表面积、微孔孔容随活化时间增加而增加。

The structure of materials after modification was determined by using nitrogen adsorption. The modification resulted in a decrease in porosity, especially in micropore volume.

改性后的活性炭用氮气吸附的方法测定其孔结构特征，表明改性减少了空隙率，特别是减少了微孔体积。

Higher surface area and larger micropore volume were better to adsorption.

活性炭的甲烷吸附性能主要受表面积以及微孔孔容影响。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。