“钻井取心”的概念、定义、翻译、参考文献-科学参考

单词	钻井取心
释义	钻井取心 Encyclopedia 工学钻井取心录井技术释 drilling coring钻井取心为了掌握地下地质情况，直接获得真实可靠的地下岩层的有关资料，在钻井过程中用取心工具从地下取出大块岩样（岩心）的作业。
随便看	principal congruence subgroup principal conjecture principal conjunctive normal form principal connex principal convergent principal coordinates of neighbour matrics principal crossed homomorphism principal curvature principal curve principal curves principal deformation principal determinant principal diagonal principal diameter principal dielectric axes principal direction principal direction of curvature principal discrete series principal disjunctive normal form principal distribution parameter principal divisor principal dual ideal principal element principal element elimination principal elliptic term

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。