“标准层--标志层”概念、定义、翻译-科学时代

单词	标准层--标志层
释义	地球科学词汇手册 key bed 标准层，标志层
随便看	direct response advertising direct-response advertising direct-response advertising direct-response agency direct-response broadcast advertising direct-response marketing direct response marketing direct-response media direct-response mode direct response promotion direct-response television (DRTV) directress direct return hot-water heating system direct reversal shot directrix directrix directrix directrix directrix direct rope haulage direct runoff direct-runoff hydrograph direct sale direct sale clause direct sales

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。

key bed