Precambrian是什么意思

实用例句

1. Two main glacial epochs affected both areas during the last 100 million years of Precambrian times.

在前寒武纪的最后1亿年中，两个主要的冰川时期对两个地区都产生了影响。来自柯林斯例句

2. Gneiss, a metamorphic rock, can be commonly found in Precambrian areas.

片麻岩, 变质岩, 可以发现,在常见的前寒武纪地区.来自互联网

3. Precambrian time for as much as eighty - five percent of all geological time.

从前寒 武 世纪以来地球地面大部分被冰川所覆盖的任何地质年代.来自互联网

4. Early - Precambrian rocks are widely exposed in Dunhuang - Beishan area, GansuProvince.

甘肃敦煌 - 北山地区广泛出露早前寒武纪岩石.来自互联网

5. Rapakivi is a special rock in Precambrian.

环斑花岗岩是发育于前寒武纪的一种特殊岩石.来自互联网