Carboniferous period

Carboniferous period

美 　英

• na.石碳纪
• 网络石炭纪；时代石炭纪；石炭纪期

英汉解释

na.

1. 石碳纪

例句

Much of the petroleum we use today began some 200 million years ago in the Carboniferous Period.

我们今天使用的很多石油都起至200万年前的石炭纪。

Carboniferous period, the early gymnosperms (such as etc. ) is very impressive, but the number of ferns most abundant.

石炭纪时，早期的裸子植物（如苏铁、松柏、银杏等）非常引人注目，但蕨类植物的数量最为丰富。

This eventually resulted in the oxygen-rich atmosphere of the Carboniferous period around 340 to 280 million years ago.

这导致在距今2.8到3.4亿年前的石炭纪大气中的氧气几近饱和。

Selection and Evaluation for the Mining Methods of High and Extra-highSeam of Carboniferous Period in Datong Coal Field

大同煤田石炭系厚及特厚煤层采煤方法的选择

cone-bearing gymnosperms dating from the Carboniferous period;

产生于石炭纪的有球果的裸子植物；