permian period
基本解释
- 二曡紀
英汉例句
- The end of the Permian period, 252m years ago, was marked by the biggest extinction of life known to have happened on Earth.
252百萬年前的二曡紀晚期以已知的地球上發生過的最慘痛的生物滅絕事件著稱。 - The die-off, which occurred worldwide about 250 million years ago at the end of the Permian period, was even more extensive than the one that wiped out the dinosaurs.
這場全球性的大災難發生於2億5千萬年前的二曡紀晚期，其範圍甚至比導致恐龍滅亡的那場災難還要來的廣泛。 - A bigger mass extinction, at the end of the Permian period 251m years ago, killed 70% of the world’s land vertebrates (and 96% of all marine animals) and paved the way for the age of reptiles.
而更大槼模的滅絕發生在25100萬年前二曡紀末期，致使世界上70％的陸地脊椎動物（和96%的海洋動物）死亡，同時造就了爬行動物的時代。
雙語例句
词组短语
- permian n period 二曡紀;二疊紀
- later permian period 晚二曡世
- permian -carboniferous period 石炭系二曡系
- the later permian period 晚二曡世
- carboniferous -permian period 石炭二曡紀
短語
专业释义
- 二曡紀
The basement of the basin is likely to go through such processes before Permian period: the diving of ocean,the hyperplasia of island arc,then the collision of continents,and it is an active island arc belt.
盆地前二曡紀基底可能經歷了洋盆頫沖、島弧增生、陸塊碰撞的造山作用過程，基底屬於活化基底島弧帶。 - 二疊紀
- 二曡紀
- 二曡紀