In micrographics, a measure of the remoteness of the copy from the original material, the first microfilm representation being the first generation microfilm.
在缩微照相技术中,度量

原始资料远近
程度。第一次缩微
胶片为第一代缩微胶片。
)第一代
,初代,原版(软件、机器等)In micrographics, a measure of the remoteness of the copy from the original material, the first microfilm representation being the first generation microfilm.
在缩微照相技术中,度量

原始资料远近
程度。第一次缩微
胶片为第一代缩微胶片。
Compared with virginoparae, the genetic relationship between fundatrix and the first generation of virginoparae (apterous) produced by fundatrix (apterous) was much close.
③
母和

遗传关系很近,但孤
蚜已与二者有分化.
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软件
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