| 释义 |
Proterozoic Eon
基本英英例句
元古宙
Noun:
from 2,500 to 544 million years ago; bacteria and fungi; primitive multicellular organismsGlobal ice ages occurred at least three times in the period known as theProterozoic eon, first at 2.3 billion years ago and again at 750 million and 600 million years ago.原生代期间至少发生过三次全球性冰期，第一次始于23亿年前，其后于7.;5亿与6亿年前又再度发生。
DISCUSSION ON PLATE TECTONICS AND MINERALIZING PROCESS IN MIDDLE-LATE PROTEROZOIC EON IN QINLING OROGENIC BELT AND ITS ADJACENT AREA秦岭造山带及邻区中晚元古宙板块构造与成矿作用初析DISCUSSION ON PLATE TECTONICS AND?MINERALIZING PROCESS IN MIDDLE?LATE?PROTEROZOIC EON IN QINLING OROGENIC BELT?AND ITS ADJACENT AREA 秦岭造山带及邻区中晚元古宙板块构造与成矿作用初析The Proterozoic climate was still warm and wet, but compared with that of the Archaeozoic Eon, the temperature fell a little.元古宙的气候仍是温暖而潮湿的,但较太古宙温度有所降低。 |