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性比率
anim.husb. sex rate
性比率在动物群体中雌雄个体数量之比或比率,一般指出生时群体的性比
anim.husb. sex ratio
性比率
repr.biol. sex rate
性 比率: 51 phrases in 18 subjects
Agriculture5
Animal husbandry1
Business5
Commerce1
Desert science1
Economy3
Electronics1
Finances5
General3
Genetics1
Geophysics1
Information technology1
International Monetary Fund15
International trade1
Oil / petroleum1
Reproductive biology2
Securities1
Technology3