Rock density damage increment with ct can be obtained by subtracting ct number of the undisturbed rock samples from that of the loaded rock samples.

通过对岩石试样在加载前后测得的CT数作差值运算，可获得岩石试样在不同应力阶段的CT密度损伤增量。

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Seven large areas (zones) of magmatic activities were detected on the basis of rock density characteristics and Bouguer gravity anomaly data of eastern Inner Mongolia.

依据岩石密度特征，应用布格重力异常资料，在内蒙古东部地区推断7个大型岩浆岩活动区(带)。

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Many random factors were taken into account when calculating the block reliability, such as angles of joint face, binding force, friction coefficient, the rock density, etc.

在分析块体的可靠度时考虑了结构面的产状、粘结系数、摩擦系数、岩体的容重等多个随机因素。

youdao

Gamma-ray emitters bounce atomic particles off rock formations to see the size, density and flow of oil reservoirs.

FORBES: Magazine Article

In cases where the mass is known, scientists can determine the density, ultimately hinting at the internal structure (gas, rock and so on).

ENGADGET: Alt-week 27.10.12: ancient texts, super-Earths and special-ops mice

Unlike any other asteroid known today, Vesta has an iron core surrounded by layers of mantle rock and crust, similar to Earth and Mars, preliminary gravity and density measurements suggest.

WSJ: Asteroid Vesta Gets a Close Study