rock core sample

基本解释

It is difficult to bore and sample the core of rock in soft medium, and it will influence the results of test due to the disturbing of soil and concrete sampling.
在介质软弱的情况下，钻孔取芯、取样很难实现；由于对混凝土芯样、土样产生扰动从而对检测结果产生影响。
Lab research of NMR rock sample analysis technique applied in core and cuttings measurement show that all measurement parameters obtained from NMR have high accuracy in measurement.
利用核磁共振岩样分析技术对岩心、岩屑测量进行的实验研究结果表明，核磁测量得到的各项测量参数均具有较高的测量精度；

We looked at a core-sample section—a moist log of dirt and rock.
NEWYORKER: The Miner’s Daughter