体积密度

与对照组相比，实验组空泡状线粒体的体积密度显著增加（P＜0.01）。

In comparison with the control the volume density of vacuolar mitochondria showed a significant increase in the tested group ( P < 0.01 ) .

真空法测定废旧轮胎橡胶粉毛体积密度的应用

The determination of bulk volume density of waste tire rubber powder with vacuum method

介绍了AlF3的加入对烧结Al2O3的体积密度、气孔率的影响，以及AlF3对板状氧化铝形成的作用

Ffect of aluminium fluoride on bulk density and porosity of the sintering alumina

测试了试样的体积密度，显气孔率及抗弯强度，用SEM分析了显微结构。

The bulk density , porosity and bending strength of samples were examined and the microstructure was investigated by SEM .

PP细胞面数密度（NA）及体积密度（Vv）的变化与PP细胞百分数的变化基本一致。

The changes of volume density and numerical density per area corresponded with the changes of percentage of the PP cells .

定量研究发现：AD组的体积密度、长度密度、面数密度显著地少于正常老年对照组，P值均小于0.01；

The Volume Density , Length Density and Numerical Density on Area in the Alzheimer 's disease group were obvious lower than those in the healthy elderly group , P < 0.01 respectively .

前列腺PSA体积密度的计算：血清PSA值/前列腺体积[单位：ng/（ml·cm3）]。

Calculation of prostate PSA density : serum PSA / prostate volume . ( unit : ug / ml / cc ) .

测量烧后试样的线变化率、显气孔率和体积密度，并利用XRD和SEM分析烧后试样的相组成和显微结构。

The linear change rate , apparent porosity and bulk density of the specimens were determined , the phase composition and microstructure of the specimens were analyzed by XRD and SEM .

通过改变Al2O3的加入量，探讨了Al2O3的加入对烧成镁钙砖的体积密度、显气孔率和耐压强度的影响；

It discussed the effect of Al_2O_3 on volume density , superfical porosity and compressive stregth of the burned magnesia_ calcia bricks through changing the Al_2O_3 content ;

经DEN攻击后，实验组肝癌前病灶在数密度和体积密度上都显著高于对照组；

Both the number and volume density of GGT positive foci in the experimental group were higher than those in control group .

羧甲基纤维素含量对烧结预成形坯气孔率和体积密度的影响较大，随着造孔剂CMC含量的增加，SiC多孔陶瓷的气孔率也相应地增加，其体积密度相应减少。

The content of CMC affects the porosity and bulk density remarkably . With the increase of CMC content , the porosity increases and the bulk density decreases correspondingly .

AVN由后向前，P细胞的数密度、体积密度及表面积密度增加。

From the posterior part to the anterior part of the AVN , the numerical density , the volume density , the surface density of P cells gradually increased .

Al2O3含量～90wt.%和～80wt.%刚玉质均质料的烧结温度为1550℃，气孔率＜2.5%，体积密度分别为3.45g/cm~3和3.29g/cm~3；

The sintering temperatures of corundum homogenized grogs both are 1550 ℃, apparent porosity are < 2.5 % , bulk density are 3.44g / cm ~ 3 and 3.29g / cm ~ 3 respectively .

纤维束缠绕转轴的线速度直接影响到C/SiC的显气孔率、纤维束间SiC基体墙的厚度和C/SiC复合材料的最终体积密度。

Some characters of C / SiC composites , such as open porosity , thickness of SiC matrix and final density , are directly effected by the winding linear velocity of carbon tows .

实验结果表明：MgO和La2O3复合添加时，随着La2O3掺杂量的增加体积密度总体上保持上升的趋势。

The results indicate that relative density of alumina increases to theoretical density with the increase of La_2O_3 amounts .

对浸渍前后试样的理化性能和孔隙率进行了分析，结果表明：经两种溶胶浸渍后，试样的Cr2O3含量增加，耐压强度和体积密度略有升高，显气孔率显著下降；

The results from pore size distribution and physical-chemical analysis show that Cr_2O_3 contents of specimens increase , cold crushing strength and bulk density of specimens increase a little but apparent porosity decreases markedly after impregnation .

本试验研究了两种有机硅基粉料对砂浆体积密度、吸水率、3d强度的影响，为降低抹灰砂浆吸水率和提高墙体抗渗性能提供解决方法。

This paper presents the influence of two kinds of organic silicon powder on volume density , water absorption and 3d strength of mortar . Also offers some suggestion to reduce the water absorption of finishing mortar and improve the impermeability of wall .

采用先驱体转化法（PIP方法）制备C/SiC陶瓷基复合材料，通过调整多孔预制件的体积密度制备出不同组分比的C/SiC复合材料。

C / SiC composites was prepared by ways of polymer infiltration pyrolysis ( PIP ) . C / SiC with different ratio of component was prepared .

所制得AlON试样的体积密度为3.63g/cm3，约为其理论体积密度的97.8%。

The density of AlON is 3.63 g / cm 3 , about 97.8 % of its theoretic density .

利用工业氧化铝与煤系轻烧高岭土或高纯石英砂为原料合成高纯莫来石，研究了添加剂（分别为滑石、ZnO和锆英砂）、合成温度、工艺过程对莫来石相含量及体积密度的影响。

High purity mullite was synthesized with industrial alumina and light-burned kaolinite . The influences of additives such as steatite , ZnO and zircon , temperature and synthesizing process on mullite phase content and bulk density were researched .

合成堇青石（MAS）并制备MAS/SiC复相材料，测试了复相材料的体积密度、开口气孔率及抗热震性等。

Cordierite ( MAS ) and MAS / SiC multiphase material were prepared , and then the multiphase material 's bulk density , open porosity , flexural strength and thermal-shock resistance were measured .

通过测定样品的吸水率、气孔率、体积密度及热膨胀系数等，并配以XRD，SEM等测试手段，系统研究了其合成工艺。

The synthesizing process of the cordierite was systematically investigated and the sample properties of water absorption , porosity , density , thermal expansion coefficient , etc . were tested and the microstructure characteristics were observed by XRD , SEM .

本文通过分析影响石油焦CO2反应性及空气反应的因素，说明控制石油焦的杂质含量、提高体积密度、降低孔度对阳极生产的重要性。

This text passes the factor that analysis effect petroleum coke CO_2 reaction and air reaction , the impurities content of the instruction control petroleum coke , increase volume density , lower the importance that pore degree to the anode produce .

本研究中测定了样品的吸水率、气孔率、体积密度及抗折强度，并采用XRD、SEM、EPMA测试技术对样品的相组成、显微结构和元素分布进行了分析。

The body-glaze fit was studied . The water absorption , porosity , bulk density and bend strength have been measured . The phase compositions , microstructures and element distribution have been tested by XRD , SEM and EPMA .

方法应用方网测试系统在显微镜下测量53例胆囊腺癌石蜡标本切片的体视学参数：癌巢的表面积密度（Sv）和体积密度（Vv）。

Methods The data were measured on 53 specimens of gallbladder cancer with squard net detective system under microscope including surface area density of cancer nest , volumn density of cancer nest .

以高纯Al2O3（>99.9%）粉末为原料，采用无压烧结工艺制备了透明性良好的Al2O3透明陶瓷，并测定其体积密度和透过率。

Optical transparent polycrystalline Al_2O_3 ceramics were fabricated by the conventional solid-state pressureless sintering processing using high purity powder of Al_2O_3 ( > 99.9 % , in mass ) . Bulk densities and transmissions of ceramics were measured .

为了验证MSCT工艺的突出优点，分别利用MSCT工艺和模压工艺制备了沥青基炭复合材料，并就其组织结构、体积密度和力学性能进行了研究。

In order to validate the outstanding advantages of the MSCT technology , pitch-based carbon composites were fabricated with MSCT technology and mould pressing technology , and their microstructure , density and compressive strength were experimented .

存活不同时间后，用AChE酶细胞化学技术染色脑切片，用图象分析系统测算海马层AChE阳性神经元及纤维的体积密度。

After different time of survival , brain sections were stained with AChE enzymatic cytochemical technique and the volume density of AChE positive neurons and fibers in hippocampus and cerebral cortex were measured by an image processing system .

分别测定了在烘干（110℃×24h）和中温处理（1100℃×3h）后试样的显气孔率，体积密度，抗折强度和耐压强度。

The property of bulk density , apparent porosity , modulus of rupture and cold crushing strength of the specimen after the drying ( 110 ℃× 24h ) and sintering ( 1100 ℃× 3h ) were tested separately .

并研究了在Al2O3-SiC-C质耐火浇注料、捣打料中加入Fe-Si3N4粉，考察了添加物对材料的体积密度、线变化率、抗渣性、抗氧化性和强度的影响。

In addition , the effect of Fe-Si_3N_4 powder on bulk density , linear change rate , slag resistance , oxidation resistance and mechanical property of Al_2O_3 - SiC-C castables and ramming mixes were also studied .