1·Nuclear DNA was successfully extracted from a 13,000-year-old emu eggshell and a giant moa eggshel.
细胞核 DNA 成功地从一只1.3万年前的鸸鹋蛋壳和一只巨大的恐鸟蛋壳中被提取出来了。
2·Indeed, the purple colour extracted from a snail was once so costly that in society at the time only the rich could afford it.
的确，从蜗牛身上提取的紫色物质曾经非常昂贵，在当时的社会，只有富人才能买得起。
3·It is easily extracted, because it is one of a handful of genes found outside the cell nucleus, in structures called mitochondria.
它很容易提取，因为它是在细胞核之外、叫做线粒体的结构里被发现的少量基因之一。
4·This Isocontour is used to determine which isosurface is extracted.
该等值线用于确定哪个等值面被提取。
5·Anhydrovinblastine was extracted from catharanthus roseus fresh leaves in different ways.
从长春花新鲜叶子中提取脱水长春碱有不同的方法。