Reduce the size of your content. Use PVRTC compression for textures and use low poly models. See the manual page about reducing file size for more information.

减少内容大小。使用PVRTC压缩纹理并使用更低多边形模型。参见有关减少文件大小的手册页面了解更多信息。

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Scan in grayscale and if possible save the bitmap in GIF or PNG format, as these will preserve the sharp edges of the letters while keeping the file size low.

扫描灰阶，如果有可能保存位图的GIF或PNG格式，因为这些将保持锋利的信同时保持文件的大小低。

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The disadvantages of traditional three-dimension animation and video, such as large file size, low-level interaction and non-real time, urge web-based education to find new way out.

传统的三维动画和视频因文件量大、交互性和动态性弱的缺点使网络教育不得不寻求新的媒体技术。

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