be derived from

基本解释

It can be derived from plants, animals or other categories such as fungus or fermented products like alcohol.
它的来源来自植物、动物或者其他物质，例如真菌类或者像酒等发酵产品。
Your surname may be derived from a place, such as Lancaster, for example, or an occupation, such as Weaver, but this is not necessarily of relevance to your family history.
或许，你的姓氏来源于一个地方名，例如兰开斯特，或者来源于职业，例如编织工。但是，这并不能中肯地说出你家族的历史。
Others, though, such as a requirement that a certain proportion of electricity be derived from non-fossil-fuel sources, make no attempt to pick particular technological winners.
然而，诸如要求一定比例的电力来自非矿物燃料资源的其它方面，并没有要求选择某些特定技术，将其列为赢家。

If one follows a diet that would be derived from the glycemic index; you're likely to have a pretty healthy diet.
如果一个人遵循基于血糖指数的饮食计划,你会得到一个相当健康的饮食
耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

All strategies towards fostering regime change in the DPRK should be derived from this goal.
CENTERFORSECURITYPOLICY: Center for Security Policy Contain and Transcend: A Strategy for Regime Change in North Korea Page: 3