I have just completed the Chinese version of Geoservant 3D (thanks to professor Yingjie Lan from the Peking University). If you are good in Chinese and if you can read things like "在线3d绘图程序，可以在任何浏览器中运行", try it out here:
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Send me an email to info AT matheretter.de if you like to help with the translation to more languages.