USB Composite DeviceUSB复合设备双语例句1Based on the above theoretical basises, we design the USB massstorage and smart card reader composite device. 3.基于以上理论基础，我们设计了USB大容量存储及智能卡读卡器设备的复合设备。 2The main contents of this paper are list as below: 1. The present situationof USB mass storage and smart card reader composite device, andinfluence and meaning of this composite device if we realizedsuccessfully. 2.以下是本论文的主要内容：1.USB大容量存储和智能卡读卡器复合设备的发展现状，及实现复合设备的意义。
