patent.com.cn
中国专利信息网
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soopat.com
soopat 专利搜索,专利搜索,专利查询,检索,下载
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baiten.cn
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patenthub.cn
以专利数据分析挖掘为核心的垂直搜索引擎，主要提供专利查询,专利检索,专利下载,专利分析,专利管家,年费监控,专利申请,专利地图,竞争监控等服务。
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cnki.net
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xmlib.net
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doc88.com
道客巴巴(doc88.com)是一个在线文档分享平台。你可以上传学术论文,研究报告,行业标准,课后答案,教学课件,工作总结,作文等电子文档，可以自由交换文档，还可以分享最新的行业资讯。
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letpub.com.cn
letpub sci论文英语润色和同行资深专家修改团队全部由以英语为母语，有长期编辑科技论文经验的编辑组成。他们来自于临床医学、生物、化学、物理、工程学 、天文学、地球与环境科学、人文社会学、商学等不同学科领域，且有丰富的sci研究论文、领域综述的发表经验，经常获邀担任一些期刊的审稿人。
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drugfuture.com
drugfuture药物在线是广泛、专业的药物信息提供平台。聚焦于全球药物研发信息，提供药物信息资讯、药物科学数据库、药物开发资源共享、专利信息检索下载等。
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