The software structure is made up of device driver, hardware abstract layer (HAL), visualmachine (VM) and reading ZIF file.
其中软件体系结构包括：驱动程序、硬件抽象层、虚拟机、读取接口数据文件。
2
At Qinghe Railway Station in Beijing, China's first visual remote ticket vending machine (远程可视售票机) has been installed (安装) to help passengers who are not able to afford tickets online.
北京清河火车站安装了中国第一台远程可视售票机，为那些无法网上购票的人提供帮助。
3
Before we dive in to the state machine concepts, we'll take a quick look at the visual snippet editor.