“precambrian flora”的概念、定义、翻译、参考文献-科学参考

单词	precambrian flora
释义	precambrian flora Encyclopedia 理学古植物学释 precambrian flora前寒武纪植物前寒武纪（5.4亿年以前）和早古生代是藻类植物的时代。35亿年前或略早于35亿年前到大约15亿年的前寒武纪地球上只有细菌和蓝藻。它们都是原核生物。从15亿年前到寒武纪（5.4亿年前）地球上除细菌和蓝藻外，已有绿藻、红藻和褐藻。
随便看	power ceilings power center power centrismcentrism power character power circle power coal power combiners power compensation DSC power conditioner power conditioning module power congruence power connection system of hydropower station Power Construction Corporation of China power consumption power consumption, power dissipation power control power controller power control unit power conversion power conversion efficiency power conversion system power convertor power counting power curve power-delay product

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