The results showed that gas permeation mainly occurs in amorphous region of the PMP, but also in the crystalline region.

Effects of Post-treatment Method on Crystalline Type, Particle Size, Surface Binding State of Nanometer-size TiO_2

后处理方法对纳米TiO2晶型、粒度与表面结合态的影响

It shows that the doped samples synthesized by this process have good crystalline and homogeneous particle size distribution.

该工艺制备的掺杂样品结晶性好，产品粒径均匀分布。

The results showed that both the crystalline size and particle size increased with increasing calcination temperature.

检测结果表明，粉体的晶粒度和颗粒度都随煅烧温度的增加而增大。

A stable nanometered TiO_2 colloids were prepared from the hydrolysis of titanyl organic compounds by controlling the reaction conditions. The X-ray diffraction and scan electro microscopy ( SEM) revealed that the colloidal TiO_2 was in an anatase crystalline particle form with a diameter of 12 nm.

控制钛氧有机物水解条件合成稳定的纳米二氧化钛胶体，X射线衍射和扫描电子显微镜研究表明，该胶体的胶粒为锐钛矿型晶体，晶粒大小约12nm。

Eucommia ulmoides gum ( guttapercha or balata) is a crystalline particle existing in the bark and leaf of Duzhong tree ( Eucommia ulmoides Oliv), and to extract E.

在杜仲树中杜仲胶以晶体微粒的形式存在，必需用溶剂提取或机械破坏植物组织来获取。

Study on Secondary Pore in Zeolite Molecular Sieve Materials ⅰ. Secondary Pore in Crystalline Particle and Equivalent Diameter of Crystalline Particle

沸石分子筛材料中次级孔的研究&Ⅰ.晶粒内次级孔与晶粒当量直径

After sintered in 1600 ℃, nearly dense mullite with fine crystalline particle was obtained.

试样在1600℃烧结得到接近致密、晶粒尺寸均匀、细小的莫来石瓷。

Various deviation surveying, preventing and controlling systems used for continental scientific drilling and deep hole drilling in crystalline rock are collected and summed.

收集和总结了主要科学钻探项目和结晶岩深孔取心钻探项目采用的钻孔测斜、防斜和纠（造）斜系统。

The Precambrian crystalline rock series in the Yadong area is previously called "the Nyalam Group".

藏南亚东地区前寒武纪结晶岩系以往统称为“聂拉木群”。

Characteristics of saprolites formed from crystalline rock and clasolite in humid climatic regions and their development process

温湿气候区结晶岩与碎屑岩腐岩特征及其发育过程

A crystalline rock that can be cut and polished for jewelry.

一种水晶石，能切割、打磨成珠宝。

Assessment for Stability of slope in Area of Crystalline Rock at the Three Gorge Dam

三峡工程水库结晶岩区斜坡稳定性评价

Genetic type and stability evaluation of the slope in Huangling crystalline rock zone

黄陵结晶岩区斜坡成因类型及稳定性评价

Evolution of mineral under interaction of water and crystalline rock

水岩相互作用下结晶岩的矿物演化

The matrix of fine-grained crystalline material in which larger crystals are embedded.

纹理细密的水晶质矿物的基岩，其中嵌有大粒水晶。

Structure model of non-crystalline material

非晶态材料的结构模型

A natural or synthetic crystalline material having piezoelectric or semiconducting properties.

一种天然的或人造的晶体材料，具有压电性和半传导性。

Each crystalline material's atomic arrangement falls into one of six different families:

晶体材料的原子排列分为六个不同系列：

It has many merits, such as can melt repeatedly, no subcooling or crystalline humor separation phenomenon during crystalline, cheap price, non-toxic, non-corrosiveness and so on.

能反复融解、结晶而不发生过冷或晶液分离现象；价格便宜、无毒且无腐蚀性等优点。

The experimental results of continuous casting of hollow tubes showed that there were many problems such as poor surface quality, too many faults, and coarse crystalline grains in solidification structure and poor uniformity of structure in the circumferential direction.

低熔点的Sn-Pb合金空心管坯连铸模拟实验表明，连铸管坯存在表观质量差、缺陷多、凝固组织晶粒粗大且周向分布均匀性差等问题。