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数学函数
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数学函数
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数学函数
两个集合间的一种二元关系,使得第一个集合中的任一元素都关联至第二个集合中的单一元素。又称映射。
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grasstoots committee of Chinese Communist Youth League
grass variety
Grass Variety Approval Committee of China
grass variety degradation
grass variety selection
grass variety stability
grass variety uniformity
grass weed
grassy weed
grate
grate discharge ball mill
grated-bottom intake
grate-kiln pelletizing process
graticle
graticule
Gratien Lazare Pognon
grating
grating array
grating constant
grating device
grating diffraction measurement
grating dividing head
grating efficiency
grating equation
grating graphic processing
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