角鲨胺是从1995年开始在实验室合成的，因此，不再从鲨鱼组织中直接提取。

Squalamine has been synthesised in a lab since 1995 and is no longer extracted directly from shark tissue.

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最后，它创建一个视图，这个视图提取并以关系列的形式提供职员ID、名字、姓氏和办公室编号。

Finally, it creates a view that extracts and exposes employee IDs, first names, last names, and office Numbers as relational columns.

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实验室研究也显示，豆瓣菜叶子的提取物抑制了乳腺癌细胞的生长。

Laboratory studies also showed that extracts taken from watercress leaves inhibited the growth of breast cancer cells.

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