然后，数据被从应用程序服务器拉到手持设备。
The data is then pulled from the application server down to the handheld device.
具体来说，你可以编写一个应用程序，从设备采集音频和视频。
Specifically you can write an app that captures audio and video from the device.
具体来说，你可以编写一个应用程序，从设备采集音频和视频。
Specifically you can write an app that captures audio and video from the device.
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