　　　第四部分主要描述了系统硬件各部分的电路图。的翻译：　　　Part IV describes the hardware circuit diagram of the parts of the system. 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Part IV describes the circuit diagram of the various parts of the system hardware.

　　　Part IV describes the hardware circuit diagram of the parts of the system.

　　　The fourth part mainly described the system hardware various part of circuit diagrams.

Section 4 describes the main components of the system's hardware of the wiring diagram.

　　　Part IV describes the hardware circuit diagram of the parts of the system.