单词：drill core
drill core的用法和样例：
例句
- The core pellet is placed in a chamber.把岩芯放在容器中。
- Petrological and mineralogical examinations of core material can be used to identify hydrothermal alterations.岩芯的岩石学和矿物学研究也能用来鉴定水热蚀变。
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