This paper establishes an extended system of a system of differential equations by introducing some supplementary variables.

通过引进辅助变量的方法建立微分方程组的扩充系统。

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Workers built a huge system of waterways and pumping stations to control the overflow of Lake Okeechobee, north of the Everglades.

VOA: special.2009.06.30

Well, we start out with our usual system, and we have a bunch of little pebbles on it.

还是那个系统，活塞上面放了很多小石子。

麻省理工公开课 - 热力学与动力学课程节选

And Pauli says no two electrons in a given system can have the entire set of quantum numbers identical.

而泡利认为在一个给定的系统内,没有两个电子有完全相同的量子数。

麻省理工公开课 - 固态化学导论课程节选

It is a cancer of the lymphatic system, which is a part of the immune system that consists of a series of ducts or tubes that parallel the arteries and veins throughout the body.

CNN: What is Hodgkin lymphoma's effect on the lymphatic system?

"The problem is not that we need more assessment, but we need to figure out how to develop a comprehensive system of support and a system that can really help kids, " he says.

WSJ: Will Students Take a Mental Health Test?

The old way was a system of record, the new way is a system of engagement, and their integration creates value.

FORBES: The Best Social Media Idea of 2011