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density相关的网络例句

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The device takes the varying quantity of the thermoelectromotive force regulation between that two components as the standard for the change of methane's density. The device can test the density directly, differs from the traditional test pattern which use the resistance change to cause the variation of the Wheatstone bridge output electromotive force.

设计出了一种全新结构的载体催化元件,它的特点是将两元件间的温差电动势的变化量作为衡量CH4气体浓度变化的标准,直接进行测试,有别于传统的利用电阻变化引起惠斯登电桥输出电动势变化的测试模式。

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。

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。

The results show that: Basic density,tracheid length,tracheid width and the ratio of the tracheid length and width increase from core to bark; basic density has a small decrease from base to top,but the change is not significant;The tracheid length,tracheid width and the ratio of the tracheid length and width increase step by .step from the base up to certain height and then decrease by degrees.

基本密度自树干基部向上呈减小趋势,但变化不大;管胞长度、管胞宽度及管胞长宽比自树干基部向上呈&小—大—小&的变异规律;木材的化学成分含量和PH值除抽提物含量随着树高的增加而下降外,其它指标在树高方向上的变化未呈现明显规律性。

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。

But the reality is: fotographic control is simple, use the transmissional density gauge makes it easy to control the density and linear.

而本质的环境是:胶片的把持比力单一,搁置透射密度仪可以很便当把持密度和线性。

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