“凿井炮孔组--向下掘进炮孔组”概念、定义、翻译-科学时代

单词	凿井炮孔组--向下掘进炮孔组
释义	工程与技术词汇手册 sinking round 向下掘进炮孔组；凿井炮孔组
随便看	quick ratio quick ratio quick ratio quick ratio quick ratio quick ratio quick ratio quick reaction quick reference quick reference service quick-releasing relay quick-response quick response quick response excitation quick response logistics quick response--quick response（QR） quick response system quick response technology quick-response thermocouple quick response（QR） quick-rewind quick sales at small profit quick salting quicksand quicksand

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。

sinking round