Your system does not have any communication ports installed or the device driver for the communication port is not started.

系统未安装任何通讯端口，或通讯端口的设备驱动程序未启动。

youdao

Mobile communication control method, mobile communication system, routing device, management device, and program.

移动通信控制方法和系统，路由设备，管理设备以及程序。

youdao

The field communication software I developed shields the discrepancies in all kinds of device communication methods, providing a uniform communication interface for applications.

所开发的现场通信软件屏蔽了各种设备通信方式的差异，为应用程序提供统一的通信接口。

youdao

Just as laptops usurped desktops, Mobile is becoming the primary all-in-one (TV, gaming, txting, et al.) communication device.

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The precise form that the communication device would take is not yet known.

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He says the ad also shows the iPhone was a great phone, a personal communication device and a great iPod.

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