视密度

其中以真空干燥样品性能最好，其吸油值为1.6396ml/g、视密度为0.2635g/ml、比表面积为88.9m2/g、二氧化硅含量92.25%。

By vacuum drying which was the best drying methods among the three , the product has good performance as follows : oil absorbed value was 1.6396ml / g , apparent density was 0.2635 g / ml , specific surface area was 88.9m2/g and silica content was 92.25 % .

重力异常三维反演&视密度成像方法技术的应用

3D inversion of gravity anomaly ∶ an application of the apparent density imagery technology

结果表明，聚乙二醇单独作用时产物产率最高，比表面积最大，DBP吸着率最高，视密度最小。

The results showed that the product which PEG acted alone had the highest product rate , specific surface area and DBP adsorption rate and the lowest aparent density .

视密度，根据不同地形高度上的解析方法分为确定的和统计的两类。

Two analytical methods , definite and statistical , are discussed respectively .

湿真密度和湿视密度减小；

The wet density and the pellet ratio decrease .

铅粉视密度对铅酸蓄电池性能的影响

Influence of apparent density of lead powder on performance of lead - acid batteries

中国视密度图与大地构造单元

Apparent density mapping and tectonic of China

同时介绍了锌粉颗粒大小分布、视密度和流速等物理性能的测试方法。

The method of physical analysis including partical size distribution , apparent density and flow rate were introduced .

本文综述了各种确定岩石真密度和视密度的方法。

This paper gives a comprehensive review on different methods used to determine real and apparent densities of rocks .

同时，选择合适的烧结温度有利于提高锶铁氧体的磁性能和视密度。

To select the appropriate sintering temperature was propitious for the magnetic property and the apparent density of strontium ferrites .

以此得到的密度，反映该深度层密度的近似分布，故称为视密度成像。

The density obtained by this method is the approximate density contribution of the strata , and is called apparent density imagery .

三维视密度反演技术反映地质体的横向密度变化情况，从纵向上为潜山研究提供证据；

The 3D apparent density inversion section can reflect the density variation of the geological body both vertically and horizontally and provide evidence for buried hill research .

研究了机械活化时间对粉煤灰的视密度、比表面积、粒度分布及活性的影响。

The properties , such as apparent density , specific surface , particle size distribution and activity of mechanical activated fly ash at different grinding time were studied .

本文搜集整理了由第四系到寒武系的沉积层资料，给出了沉积层总厚度和视密度的分布。

The data of sedimentary layers from the Quaternary down to the Cambrian are collected , and then the distributions of total thickness and apparent density of sedimentary deposits are presented .

型焦质量指标之间存在线性相关关系，随视密度的增加，强度增加，气孔率下降。

There exists a linear correlation among the formed coke quality indexes . The strength of the formed coke increases with the increase of apparent density , and decrease of porosity .

用上述方法处理中国布格重力异常图，获得了中国地壳表层010km剩余重力异常，并成功编制视密度图。

By means of the above method the gravity anomaly attributed to the upper crust with a thickness of 10 km is separated from the Bouguer gravity of China and an apparent density mapping of China is derived .

基于GA-BP理论的储层视裂缝密度地震非线性反演方法

A seismic nonlinear inversion for apparent fracture density of hydrocarbon reservoir based on GA-BP theory

针对目标储层段，应用储层裂缝地震反演方法对过井地震剖面和联井地震剖面进行了储层裂缝密度反演处理，获得了可用于地质解释和油气预测的视裂缝密度剖面。

This method is applied to real target reservoir and the apparent fracture density section is obtained .

然后，将目的层压缩成为一个等效密度界面，再用消除非目的层影响的剩余重力异常及演该界面的视界面密度差值；

- Compress the objective layer into an equivalent density interface , whose pseudo interface density differences are then derived from the pure gravity anomaly of the objective layer .

由密度测井资料求取骨架、纯水和油的视体积密度，求取已知浓度的盐水和天然气的视体积密度；

Compute the apparent volume densities of formation frame , pure water , oil , natural gas and salt water whose concentration is known , by using density logging data ;

根据分析结果，推荐用实测法或毛视平均密度法确定理论密度。

According to the analytical result , test method and average specific gravity from bulk specific gravity and apparent specific gravity of aggregate were recommended to calculate the theoretical specific gravity .

这种视裂缝密度剖面含有储层裂缝的定量信息，其误差可为油气勘探开发实际要求所允许。

The apparent fracture density section has to keep in quantitative measurements of reservoir fracture and its error may be permitted upon the practice requirement of exploration and production for oil and gas .

焦炭－－真实相对密度、视在相对密度和孔隙度的测定

Coke - determination of true relative density , apparent relative density and porosity

结果两组视区平均密度值显著性差异（P<0.001）；

Results The grey mean between two groups had significant difference ( P < 0.001 ) .

进而针对结构的规则性，提出了基于视锥三角形密度的精化判据和基于模板的渲染优化方法。

And for the regular chunk structure , the refining criterion based on view-frustum triangle density and rendering optimization method based on template are adopted .

若地层的真孔隙度和含气饱和度已知，根据中子测井视孔隙度、密度测井视孔隙度之间的差值的高低可区分气体的组份是二氧化碳气还是烃类气。

If the true porosity and gas-bearing saturation are given , carbon dioxide or hydrocarbon in the gas components might be determined form differences between neutron log apparent porosity and density log apparent porosity .

在同一地区，瓦斯气的赋存导致物性异常，特别是视电阻率及密度异常与瓦斯气的富集程度有非常密切的关系，呈现一定的规律。

In the same area , since the hosting of gas caused anomalous physical properties , especially the apparent resistivity and density anomalies has very close relation to the gas concentration extent and has a regular pattern .

并以人眼反应时间与亮度和色度的关系研究LED白绿光的光视效果和功率密度值，探索以人眼反应时间为评价指标的道路照明安全节能新方法。

And based on the relationship of the human eye response time , brightness and chroma , LED white and green the visual effects of light and power density values is studied .

视锥细胞连续分布模型依据在中央区视锥细胞的密度非常高，随着视网膜的离心度的增加视锥细胞的密度快速的减少的特性而建立。

Model of cone continuous distribution is based on the facts that the density of cone is very high in fovea and that with the increase of the eccentricity of retinal cone cell the density decreases rapidly .