Some areas covered include developing an understanding of simple, open, and closed circuits and learning how different mechanical systems work.
一些简单的开、闭合电路，可以让孩子们掌握机械系统的工作原理。
By coupling of many chaotic circuits, orbits can be closed each other, distance can be shorted, and noise in measuring can be reduced.
它是通过混沌电路的耦合，使耦合轨道相互靠拢，轨道距离减少，从而抑制电路中的噪声。
The F1 world championship season consists of a series of races, known as Grands Prix, held usually on purpose-built circuits, and in a few cases on closed city streets.
F1世界锦标赛包括一系列赛事，这些赛事被我们统称为格兰特大奖赛，它们通常在专用赛道举行，只有少数情况下举行于城市的封闭街道。
In this paper, mainly discuss the synthesis method of combined control systems (systems both contain open loop and closed loop control circuits).
本文主要讨论了复合系统(具有开环及闭环控制回路的系统)的综合方法。
These connections are arranged as a longitudinal series of circuits (closed loops).
这组作者报告说，这些连接形成了一系列纵向的回路。
These connections are arranged as a longitudinal series of circuits (closed loops).
这组作者报告说，这些连接形成了一系列纵向的回路。
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