dr2
dr2-
Study on the killing effects of p ~ ( DR2 ) / TK gene injected through the liver artery
pDR2/TK基因经肝动脉注射后杀伤效应的研究
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A large sample which contains 6878 face-on disk galaxies is selected from the data released by Sloan Digital Sky Servey ( SDSS . DR2 ) .
本文利用Sloan数字巡天（SDSS）第二次释放的数据（DR2），选取了一个包含有6878个面向（face-on）旋涡星系的大样本。