As you build these kinds of simulations, or anything like this, you need to think through whether things should be multiplicative or additive.

正如你建立各种仿真程序，或者类似的仿真程序时，你应该去想一想,他们应该是用加法还是用乘法。

麻省理工公开课 - 计算机科学及编程导论课程节选

We also have simulations, software tools and many other learning objects that is in the site.

网站还有模拟实验，软件工具,和很多其他的学习工具。

麻省理工公开课 - 媒体、教育、市场课程节选

that people do develop simulations.

这是人们开发仿真程序的方法。

麻省理工公开课 - 计算机科学及编程导论课程节选

The way we use technology to overcome that is we have a lot of simulations and visualizations set up, built around in the virtual spaces.

我们用技术来解决这个问题的方法,是我们用很多模拟实验,以及直观化实验，放在模拟空间里。

麻省理工公开课 - 媒体、教育、市场课程节选