positive density difference是什么意思

网络释义

用法例句

The normal density adjust excel .

本文通过一个三角网实验结果表明:方向平差和相关角度平差,对于经典平差(即最小二乘平差法),两种方法的结果一致,对于抗差估计,两种方法的结果不一致,但都是有效的;正态密度平差法优于Huber法、丹麦法、IGGI法、IGG法和Hampel法等抗差估计方法。

By recording the density data in compact period and mobility period and the jigging ampli- tude of the jig bed,the correlative relation between the mobility and density differences in the compact period and the mobility period was analyzed.

本文研制了γ射线床层密度在线探测器,实现了跳汰机床层内沿垂直方向上三点处的床层密度测量,在此基础上,通过记录跳汰机床层密实期与松散期的密度值和脉动振幅,分析了密实期与松散期的密度差与床层松散度之间的关联关系,提出了用床层底层及上层同一点处的密度差构建床层松散度的二阶回归模型的方法。

The liquid density difference and relative Rayleigh number at different temperatures and different cooling rates were calculated.

min-1时高温合金IN718的凝固组织、液体中Nb和Mo含量变化,并计算了液体密度差和相对Rayleigh数与温度的关系。

Secondly,it defines the differential density by the difference between two densities of the Biot medium under open-pore and close-pore conditions,and these densities are derived from the kinetic energy equations.

首先给出Biot介质地震波场的基本方程;然后基于动能方程,分别得到了开放边界条件和闭合边界条件的密度,进而用这两个密度的差值定义了"容差密度",容差密度突出了孔隙介质宏观的平均状态,回避了孔隙形态等细节问题,在此基础上推导出Biot介质密度参数的容差密度表达形式;最后对密度参数的表达式进行了分析讨论,深化了Biot介质密度参数的认识,特别指出耦合密度的负值性是动能的非负性和惯性力的平衡关系所约束的结果。

Structural patterns and density differences are salient characteristics of drainages,which should be maintained in generalized versions.

水系作为地图的基本要素之一,在地图综合中必须依据水系的类型和河网密度进行化简,以保持河网密度差异等宏观特征。

A new rule of ordering river entities based on counting the amount of their tributaries is proposed,which indicated the density differences of river entities among different areas.

河系简化是地图综合中经常需要处理的任务,其难点主要在于依据上下文环境对河流进行结构化选取,以保持河网密度差异等宏观特征。

An Empirical Study on Difference of Energy Intensity between High and Middle Income Countries

高收入国家与中等收入国家的能源密度差异的实证研究

The centrifugal force, gravity force and centripetal buoyancy teceived by sand and liquid are different for the density difference between sand and liquid.

除砂旋流器的进料压力需根据砂粒的粒度分布，固液体之间的密度差异等来确定。

The differences in density may be due to temperature or to salinity.

这种密度的差异源于温度和盐度的差别。

On Chengdu's Population Density Distribution and the Influencing Factors

成都市人口密度分布差异的影响因素

Difference between castable amount per unit volume and bulk density

耐火浇注料单位体积用量与体积密度的差异

Comparison of information density between Chinese and English based on?textual length

从汉英篇幅差异比较汉英语的信息密度

The Study of the Difference of Bilateral Proximal Femur Bone Mineral Density in DXA Measurements;

双侧股骨近端DXA骨密度测量差异性的研究

Research on Storage Quality of Baled Hay as Affected by Different Water and Bale Compactness;

水分、密度的差异对干草捆贮藏品质的影响研究

Comparison on difference of the stock density of Psenopsis anomala in the East China Sea by means of different estimating methods

东海区刺鲳资源密度不同估算方法的差异比较

when the number of yarns per 10 cm differs considerably between warp and filling, the fabric count is unbalanced.

在每10厘米中的经纬纱根数差异较大时,织物的密度是不平衡的。

It is often impossible to differentiate between structure and density contrast in determining the source of a gravity anomaly.

在确定重力异常源时，不可能在构造与密度差之间作出抉择。

1. The result showed that the density losses of the samples from the two trials were different along with the different rot time of the heartwood.

1、两个试验林样品腐朽处理时间不同,样品密度损失差异显著。

Study on Disintegration Difference of Chloroplast Density and Inclusion in the Flue-cured Tobacco of Maturation Period;

烤烟成熟期叶绿体密度及其内含物衰变差异的研究

A Generalized Spectral Density Test of Conditional Autoregressive Heteroscedasticity for Threshold Autoregressive Model;

门限自回归模型中自回归条件异方差的广义谱密度检验

A Study of Intratumoral Distribution Difference for Tumor Angiogenesis and Microvessel Density within Osteosarcoma;

骨肉瘤肿瘤血管生成与微血管密度在瘤体内的分布差异研究

Shareholding Structure and Corporate Performance;

股权结构与公司绩效的差异分析——基于产业要素密集度的视角

Gender and age differences in the distribution of the HDL subclasses among the Chinese population Gender,age and HDL subclasses distribution

中国人群年龄与性别在高密度脂蛋白亚类分布的差异

Differences of bone density and biomechanics changes after spinal cord injury and immobilization in rats

比较脊髓损伤及制动后大鼠骨密度与生物力学变化的差异