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Devonian Period
释义
Devonian Period
Encyclopedia
理学
古生代
释
Devonian Period
泥盆纪
古生代的第四个纪,在志留纪之后,石炭纪之前。约开始于4.19亿年前,结束于3.59亿年前,持续时间约0.6亿年。泥盆纪时期形成的地层称泥盆系(Devonian System)。
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STD
STDM
STD system
s-t duality
st duality
Steadily Increasing Dividend Policy
steadily increasing dividend policy
steadiness
steady
steady circuit
steady combustion fogger
steady condition of current
steady constraint
steady current
steady current condition
steady current field
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