“碑石”概念、定义、翻译-科学时代

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。

单词	碑石
释义	请查阅石柱--碑石
随便看	standard quality coal standard quantity standard radiation curve standard radioactive source standard rate standard rate standard rate standard rate of pay standard rate zone standard rating standard rating standard rating cycle standard reentry trajectory standard reference code standard reference material standard reference material（SRM） standard refraction standard refractory brick standard region standard rent standard resistance standard risk standard room standard round standard rule