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字客网图片转字符画工具可根据上传图片，用ASCII纯文字拼出其黑白图。

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Learn about all the great features and default applications in the Ubuntu desktop operating system.

可以上传一张照片自动生成所需尺寸的的拼接照片, 洗出来后剪一下即可

Create a stunning interactive maps with simple-to-use user interface. Save it as image or JavaScript code for easy publishing on your own website.

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Aviation accidents from 1908 through the present

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Can I rely on the Web Platform features to build my app? An overview of the device integration HTML5 APIs.

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Aeon is a magazine of ideas and culture. We publish in-depth essays, incisive articles, and a mix of original and curated videos — free to all.

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Interactive periodic table with element scarcity (SRI), discovery dates, melting and boiling points, group, block and period information.

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Explore the chemical elements through this periodic table

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