“prepared hole”的概念、定义、翻译、参考文献-科学参考

单词	prepared hole
释义	prepared hole 预留孔
随便看	weighted safety valve weighted sum weighted superposition weighted term logic weighted valve weight efficiency weight enumerator weight equalizer weight equation weight equipment weighter weight estimation weight factor weight feeder weight fineness weight flow weight flow rate weight-formal weight-formality weight function weight gain weight governor weight grader weight-growth factor weight hanger

科学参考收录了1248194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。