“down-the-hole drill”概念、定义、翻译-科学时代

单词	down-the-hole drill
释义	工程与技术词汇手册 down-the-hole drill 潜孔钻机
随便看	marginal price marginal price marginal price marginal price marginal pricing marginal prime cost marginal principle marginal private cost marginal private damage marginal probability marginal probability marginal producer marginal product marginal product marginal product marginal productivity marginal productivity doctrine marginal productivity of capital marginal productivity theory marginal productivity theory marginal product of a factor marginal profession marginal profit marginal profit marginal profit

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

down-the-hole drill