密度

A constant ultra-low density slurry system is developed to fit for three different thermometric well conditions,which means the low temperature well (BHCT:49℃),medium temperature well (BHCT:89℃)and high temperature well (BHCT:170℃).

研究出分别适用于低温（此处指井底静止温度为49℃的井况）、中温（此处指井底静止温度为89℃的井况）以及高温（此处指井底静止温度为170℃的井况）条件下的恒密度超低密度水泥浆体系。

The geometrical structures of thioindigo chromophores were studied at the B3LYP/6-31+G level of density functional theory.

在密度泛函理论的B3LYP/6-31+G*水平上对硫靛染料发色体的几何结构进行优化计算，在获得基态稳定结构的基础上，应用含时密度泛函理论方法在相同水平计算电子吸收光谱。

Thioindigo ; density functional theory; time-dependent density functional theory; electronic absorption spectrum

硫靛染料；密度泛函理论；含时密度泛函理论；电子吸收光谱

The geometrical structures of thioindigo chromophores were studied at the B3LYP/6-31+G* level of density functional theory. Subsequently, the electronic absorption spectrum was calculated using the time-dependent density functional theory approach at the same level.

在密度泛函理论的B3LYP/6-31+G*水平上对硫靛染料发色体的几何结构进行优化计算，在获得基态稳定结构的基础上，应用含时密度泛函理论方法在相同水平计算电子吸收光谱。

Methods A total of 15 pig tibiae were used to test the cancellous bone porosity, their relative density and the material density with the direct method and the statistical method respectively.

对15根猪胫骨分别采用&直接法&和&统计法&测试松质骨孔隙率或其表观密度和材料密度。

With the increase of stand age, plant density decreased apparently; however, grazing could promote tillering and plant density.

随着种植年限的增加，老芒麦草地植株密度下降明显，但放牧利用可以促进植株的分集和植株密度的提高。

Sp were evaluated by computer-assisted image analysis software, and the content of OPG determined by immunohistochemistry, which included mean optical density 、positive area density in bone trabecula and total positive area of cancellous bone, were evaluated by computer-assisted image analysis and semiquantitative analysis.

Sp，免疫组化方法结合图像分析半定量分析OPG在胫骨的表达，测定平均光密度、OPG在骨小梁中阳性表达的面积密度和OPG在松质骨骨组织阳性表达的总面积。

RESULTS: After six weeks of implantation, x-ray film showed high-density signal, osteoid tissue formed under histological examination. Large amount of new bone were formed and connected to trabecularism 8 weeks after implantation in the experimental group.

结果 实验组6 周时大体标本浅红色， X 线片有较高密度阻射影像，组织学检查可见有新骨形成； 8 周时大体标本呈红色，质硬， X 线阻射影像密度更高，镜下可见大量新骨形成并相互连接成骨小梁样结构，骨细胞位于陷窝中。

It has very significant sense for cultivating forests to research the variation regulation of wood ring density quantificationally and then to get to the relation between the basic density and the anatomical characteristic of tracheid.

定量地研究年轮密度变异规律，得到基本密度与管胞形态特征间的关系，对工业材良种选育及用林材的培育具有重要的指导意义。

29 Transmissional density: materials for optical absorption capacity characteristics of the transmission rate and calculates and read the practice of optical density.

3.29透射密度测定：材料的光吸收能力特性的测定，测量透射率，并计算和读取光学密度的实践。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。