Eocene例句
The funnel - shaped self - potential curve of the
Eocene sands is well marked.
始新统砂层的 漏斗形 自然电位曲线形态很明显.
These showed an evolution of increasing diversity through to the
Eocene.
一直到始新世,生物多样性都在不断地提高.
There are four hydrocarbon source rocks, Palaeocene,
Eocene, Oligocene and Miocene.
西湖凹陷发育古新统 、 始新统 、 渐新统及中新统四大烃源岩系.