pelagic period
常见例句
- The second period is a pulse of pelagic clay deposition at the Early to Middle Pliocene, reflecting the shrinkage of the Antarctic bottom waters and the global temperature elevation of this period.
第二阶段为早、中上新世的结壳生长间断期，形成深海粘土沉积，表明此时南极底流的减弱和升温； 返回 pelagic period