Carboniferous period

Carboniferous period

美 　英

• na.石碳紀
• 網絡石炭紀；時代石炭紀；石炭紀期

英漢解釋

na.

1. 石碳紀

例句

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

我們今天使用的很多石油都起至200萬年前的石炭紀。

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

石炭紀時，早期的裸子植物（如蘇鐵、松柏、銀杏等）非常引人注目，但蕨類植物的數量最為豐富。

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

這導致在距今2.8到3.4億年前的石炭紀大氣中的氧氣幾近飽和。

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層采煤方法的選擇

cone-bearing gymnosperms dating from the Carboniferous period;

產生于石炭紀的有球果的裸子植物；