Some proposition of the polygon which is inscribed and circumscribed;
关于一类内嵌外切多边形的几个命题
Isolation of exosomes by bio-membrane centrifugal filtering;
离心过滤法提取外切体的实验研究
The exosome is a conserved complex which identified in Saccharomyces cerevisiae and has 3′ exoribonuclease activity in vitro.
外切体是酿酒酵母中鉴定的一个保守复合体 ,具有 3′外切核酸酶的活性 。
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