密度

Results among 15 cases, eight cases of Loose bodies about right keen joint;three cases of left keen joint;three cases of both keen joint ;one case of pilosity dissociates bodies;two cases with joint effusion ;six cases with soft tissue swelling.16-slice SCT with 3D reconstruction demonstrated stereoscopic morphology of normal and lesions clearly with MPR correctly demonstrated details and density ,shape and size of lesions.conclusions Sixteen-slice SCT with 3D and MPR techniques can provide valuable spatial information of diseases in bones and joints of wrist and foot which correlated well with that of pathological anatomy .

结果 15例患者中，右侧膝关节游离体8例，左侧3例，双侧3例，多发游离体1例；其中2例伴有关节积液，6例有关节周围软组织肿胀。16层螺旋CT的3-D图像可清晰显示游离体的立体形态，MPR图像则可以多平面，多角度地观察游离体的大小、形态、密度、位置，对病变显示满意。结论多层螺旋CT重建能提供骨关节病变非常有价值的空间关系信息，其表现接近病理解剖，临床应用价值大，有利于临床医师选择治疗方案、制订手术计划。

Two polysiloxanes (SR2 and P67) and one polycarbosilane were chosen as preceramic polymers. TG-DTA-MS, FT-IR, XRD,〓Si MAS-NMR, SEM, TEM, SAD, HREM, chemical analysis and density measurement techniques were used to study the cross-linking and pyrolysis mechanisms of the preceramic polymers. The development of chemical composition and structure, density, phase composition and microstructure of the solid pyrolyzed products during pyrolysis process were systematically investigated. While pyrolysis temperature approached 1000℃, ceramization process of the preceramic polymers almost completed, and ceramic yield of the preceramic polymers hardly changed any more.

选取了两种聚硅氧烷（SR2和P67）和一种聚碳硅烷作为聚合物先驱体，利用TG-DTA-MS、FT-IR、XRD、〓SiMAS-NMR、SEM、TEM、SAD、HREM以及化学成分分析、密度测量等手段，研究了聚合物先驱体的固化机理；以N〓为热解气氛，系统地考察了各种聚合物先驱体在热解过程中，其热解产物的化学成分和结构、密度、相组成及显微结构的演变规律。

Density, surface tension and rheological characteristics are the essential properties of the non-Newtonian fluid. Pycnometer, surface tensiometer, and rheometer were adopted respectively to measure the density, surface tension and rheological characteristics of 0.25%, 0.50%, 0.75% PAM aqueous solutions at 293.15K. The parameters of equations were fitted in terms of the experimental data.

密度、表面张力和流变性质是非牛顿流体的基本性质，本文采用比重瓶、表面张力仪和流变仪分别测定了293.15K温度下质量浓度依次为0.25%、0.50%和0.75%PAM水溶液的密度、表面张力和流变性质，并对数据进行了关联，拟合了方程参数。

3In magnetic recording, it is the number of bits which can be stored with a single recording head per unit of recording surface lingth.

密度：(3)在磁力记录方面，密度是单一个记录头在单位长度的记录表面上所能贮存的数元量。

When the dosage of rock wool increases,the mechanical properties of products weaken linearly and the fire-retardant performance of the products heightens linearly.

该文探讨了制造木纤维/岩棉纤维复合材料时，纤维长度、岩棉纤维用量、密度、施胶量、热压温度、热压时间等因素对复合材料力学性能的影响。

A uniform fast calculation model for R22 thermodynamic and transport properties on Saturation curve, covering temperature from the three-phase point (115.8K) to the critical point (369.3K), is rendered.

在马丁侯系列方程的基础上提出R22在饱和线上热物理性质统一的显式计算模型，并且达到已知饱和线上13个热物理参数（温度，压力，比体积，密度，焓，熵，定压比热容，定容比热容，动力粘度，运动粘度，热导，音速，表面张力）的任意一个，即可求得其它所有参数。

Uniform fast calculation model for R22 thermodynamic and transport properties on Saturation curve, covering temperature from the three-phase point (115.8K) to the critical point (369.3K), is rendered.

bstract 在马丁侯系列方程的基础上提出R22在饱和线上热物理性质统一的显式计算模型，并且达到已知饱和线上13个热物理参数（温度，压力，比体积，密度，焓，熵，定压比热容，定容比热容，动力粘度，运动粘度，热导，音速，表面张力）的任意一个，即可求得其它所有参数。

Using molecular dynamics simulation method, this project carried out intensive studies on these two aspects and their relationship. Melting point, density,specific heat,self-diffusion coefficient and viscosity were involved during simulation of thermophysical properties.

本项目利用分子动力学对液态金属的热物理性质（包括熔点、比热、密度、自扩散系数和粘度）、结构以及二者之间的关系进行了研究。

The results show that CO2 specific heat, density, thermal conductivity and viscosity vary abruptly near the pseudocritical temperature.

结果表明，CO2的比热、密度、导热系数以及粘度在准临界点附近的变化非常剧烈。

The thermodynamic properties include temperature, pressure, density, enthalpy, entropy, specific volume and boiling latent heat.

建立了包括湿空气、R22、R21、R12、R11、R134a、NH3、H2O的热力性质计算数据库系统，其中热力性质计算包括温度、压力、密度、比焓、比熵、比容、汽化潜热。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。