主要部件是串联连接的一组继电器和电阻，通过微机控制继电器的状态可以使这一电路的阻值发生变化。
It employs several relays and the corresponding resistors, which are in series connection. By microcomputer control of the relays, different resistance can be obtained just like a regulation-resistor.
朝日先生的动作涉及到一些重要的电子动画技术开发，通过微机控制和调节不同的阀门和电子开关，利用压缩空气产生机器人的动作。
Mr Asahi's movements involve some serious animatronics, developed with the use of compressed air, controlled and regulated through various valves and electrical switching mechanisms via a PC.
其中单片微机系统是仪器的核心部分，通过它来实现对数据采集、处理过程的自动化控制。
Micro controller unit (MCU) system is the major part of the instrument, through which data collection and processing are controlled automatically.
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