你的便携式摄像机应该具有这些基本特征：自动调焦、回放及变焦镜头。
Your camcorder should have these basic features: autofocus, playback facility, zoom lens.
该应用软件完成采集显示、信号特征处理、数据存储与回放、波形下传和通讯控制等功能。
The application software accomplishs gathering display, signal characteristic processing, data memory and playback, waves download and communication control functions.
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