这是一个理论动力系统的一部分。

It is a part of dynamical systems theory.

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液压千斤顶一般由本机(主机)、动力系统及液压控制系统三部分组成。

The hydraulic jack generally by this aircraft (main engine), the dynamic system and the hydraulic control system three parts is composed.

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该机器人由动力系统、机械系统和控制系统组成，其控制系统主要由PIC单片机、电动机驱动电路和传感器模块三部分组成。

The whole of this robot included dynamic system, mechanical system and control system. This control system mainly included PIC single chip, motor drive circuit, and sensor module.

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