词族 · Precambrian
词形变化
英语词源
- Precambrian (adj.)
- also Pre-Cambrian, 1861, from pre- + Cambrian.
权威例句
- 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。
- 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.
- 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.
- 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.
- 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.