它提供一个基于浏览器的音频/视频会议，文本记事本，以及一个用于画图的白板。
The software includes a browser-based video/audio conference, a text notepad, and a whiteboard for drawing.
本实用新型是一种画抛物线和双曲线的画图工具。
The utility model relates to a drawing implement which is capable of drawing a parabolic curve and hyperbolic curve.
本实用新型是一种画抛物线和双曲线的画图工具。
The utility model relates to a drawing implement which is capable of drawing a parabolic curve and hyperbolic curve.
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