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 。
Methods : We did classical intraoral incision, but added a tiny extraoral incision at angle of mandible.
方法:口内下颌角手术切口,辅以口外下颌角尖端皮肤3mm微小切口,将电动磨头柄部由此小口穿出,在口外将下颌角骨部分磨除,口内去除部分咬肌,术后由口外切口置放引流,减轻术后肿胀。
, the advantages & disadvantages and applicability of internal and external cut over types of feed pump turbine were analyzed.
通过对结构、系统布置、配汽、操作、投资及运行等方面的比较，分析内切换与外切换型给水泵汽轮机的优缺点及适用性。