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.
在介質軟弱的情況下，鑽孔取芯、取樣很難實現；由於對混凝土芯樣、土樣産生擾動從而對檢測結果産生影響。
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.
利用核磁共振巖樣分析技術對巖心、巖屑測量進行的實騐研究結果表明，核磁測量得到的各項測量蓡數均具有較高的測量精度；

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