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(Bielefeld Academic Search Engine): Basic Search
DOAJ
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Directory of Open Access Journals –
FluoroFinder
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Fluorescence experiment design platform — Search. Find. Design. Our tools simplify complex experiment design, save time, & reduce errors.
Thermo Fisher Scientific
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赛默飞世尔科技公司致力于帮助客户使世界变得更健康、更清洁、更安全。
FreeImage.AI
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Free AI Image Generator
喀斯玛商城
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B2B第三方科研电商（中科院系统）
锐竞科研采购平台
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科研试剂耗材采购管理平台
盖德化工网
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网上化工贸易市场,化工行业门户网站
Statcounter Global Stats
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Browser, OS, Search Engine including Mobile Usage Share
脚本之家
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脚本之家是国内专业的网站建设资源、脚本编程学习类网站，提供asp、php、asp.net、javascript、jquery、vbscript、dos批处理、网页制作、网络编程、网站建设等编程资料。
Similarsites.com
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Easily Explore alternative websites
Primer3Plus
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pick primers from a DNA sequence