岩石的密度

要满足这种条件，山脉下面地壳岩石的密度应当有一个亏损。

Under the mountains these condition would call for a deficiency in density of the crustal rocks .

它们根据所穿过岩石的密度以不同的速度向各个方向移动。

They move in all directions , at speeds which depend upon the density of the rocks through which they are moving .

利用高压三轴容器，对华北地区九种典型岩石的密度和弹性波速度随压力的变化关系进行了实验研究。

An experimental study on variation of density and elastic wave velocity on nine typical rocks of North China was made by using a high presswre triaxial vessel .

纵、横波速与岩石的密度具有线性关系，利用密度、波速、纵横波速比或泊松比可初步判断碳酸盐岩在岩性上的差别。

There is linear relationship between the density of carbonate rock and the longitudinal or rotational wave . Lithologic difference of carbonate rock can be judged with density , wave speed , longitudinal and rotational wave speed ratio or Poisson 's ratio .

主要通过物理的原理来进行勘探，主要研究岩石的不同密度、磁性等物理差异来进行研究，通过分析这些差异获取相应的物探资料，推断出探测区域内的地质构造情况。

Primarily through the exploration of physical principles to the main study rocks of different densities , magnetic and other physical differences to study these differences by analyzing the corresponding geophysical data obtained , it concluded that detection of geological conditions within the region .

岩石的波速和密度之乘积称为声波阴抗。

The product of the velocity and density of a rock is termed in the acoustic impedance .

首先对岩石的速度、密度、磁化率、电阻率等物性资料进行统计分析，寻找它们之间的内在联系，在此基础上综合各种有用信息建立统一的物理-地质模型。

Physical properties of rocks , velocity , density , magnetic susceptibility and resistivity are analyzed statistically to look into their inherent relationships . First , various useful information is used to establish a comprehensive physical geological model .

岩石层消减中的密度反转效应

Effects of Density Reversal in the Process of Lithosphere Subduction

遥感图像岩石信息提取的最优密度分割方法

The best density separation method for extracting rock information from remote sensing image

动静组合加载下岩石破坏的应变能密度准则及突变理论分析

Failure criterion of strain energy density and catastrophe theory analysis of rock subjected to static-dynamic coupling loading

用CT图像定量分析岩石受力损伤破坏过程的难点，是难以知道岩石内部的绝对密度变化量。

It is difficult to detect the absolute density of rock by CT image in quantitative analysis of rock damage process in compression .