| 释义 |
the Ordovician
基本例句
奥陶纪
A systemic and integrated criteria is thus obtained forthe Ordoviciancarbonates in the Tahe oilfield.从而使塔河油田奥陶系储层有了一个比较系统、完善的划分标准。
The Ordovician Winnipeg may have been 200 my old or older during its main oil expulsion phase.奥陶系Winnipeg组可能已处于主要石油排出期长达200百万年或更早。
Bryozoa was quite diversified inthe Ordovician, but lacked fossil records in the Cambrian.古生物学资料表明 ,虽然苔藓动物的大多数类群在奥陶纪已经分化出来 ,但它在寒武纪却缺乏任何化石记录。
The Lazhuglung Formation overlies unconformablythe Ordovicianand Silurian strata.发现了几个重要的不整合界面；
Any of various large, segmented aquatic arthropods of the order Eurypterida that existed fromthe OrdovicianPeriod to the Permian Period.古生板足鲎目的一种巨大的、有节的，属于板足鲎目的水生节肢动物，生存于奥陶纪到二叠纪时期
It is not an isolated reservoir, but is a part ofthe Ordovicianburied bill reservoirs in this area.轮古东奥陶系油气藏不是孤立的油气藏，而是整个轮南古潜山油藏的一部分。 |