Smart WHO classification tool.
智能识别被检者工具。
And these people who care about classification maintain it.
这些人关心分类，并维护它。
China is the first one who applied book classification in library catalogue.
中国是世界上最早把分类理论应用于目录制作的国家。
China is the first one who applied book classification in library catalogue.
中国是世界上最早把分类理论应用于目录制作的国家。
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