evolution cycle meaning in English
进化周期
Examples
- The implying environmental substitute indicators are carbonate carbon and oxygen isotopes and so on . the main conclusions drawn from this paper are as follows : ( 1 ) the ancient climate evolution , from twenty - two thousand to ten thousand years before present , diexi , minjiang river , is from dryness to wetness and can be divided into six phases and two periods by analyzing the ancient barrier lake sediments through multi - environment indicators , and its evolution cycle is three thousand years or so
主要得出以下几点结论： ( 1 )通过利用多环境代用指标对岷江叠溪古堰塞湖沉积物的综合分析得出，岷江叠溪地区距今约22千年至10千年间的古气候经历了干旱湿润干旱的演化过程，演变周期大约为3千年，并将其划分为六阶段、两时期。