epoch criteria造句
例句与造句
- Series is a term defining a unit of rock layers formed during a certain interval of time ( a chronostratigraphic unit ); it is equivalent ( but not synonymous ) to the term " geological epoch " ( see epoch criteria ) which defines the interval of time itself, although the two words are sometimes confused in informal literature.
- It's difficult to find epoch criteria in a sentence. 用epoch criteria造句挺难的
