It is hard to build models to scale from a drawing.

很难根据图片按比例制作模型。

Search literature, design experiments, build models.

查文献，设计实验，建立模型。

For now, Darpa just wants researchers to build models for chemical maps.

迄今为止，DARPA只是希望研究员们能制作出化学地图的模型来。

Participants use bricks to build models that show how they and their organization work.

参与者用这种方块木头的玩具作出模样，来展示他们如何解决问题和组织能力。

The Unified Modeling Language UML has been used to build models for such complicated systems.

统一建模语言uml正是用来对复杂系统进行建模的。