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weblio是日本最大的在线词典搜索引擎，虽然其自称国语词典，但事实上，weblio包含了在线日语词典、中日词典、日韩词典、古文词典、越南语词典等超过500本字典 Weblioは556の専門辞書や国語辞典、百科事典から一度に検索する辞書サイトです。

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微软学术搜索（Microsoft Academic Search）是微软研究院开发的免费学术搜索引擎。它为科学研究人员查找学术论文、国际会议、权威期刊、作者和研究领域等提供了一个更加智能、新颖的搜索平台，同时也是一个对象级别垂直搜索、命名实体的提取和消歧、数据可视化等许多研究思路的试验平台。 Your request has been blocked. This could be due to several reasons.

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可以查询的条件包括化合物名、分子式、CAS编号或SMILES，检索结果中除了提供结构预览，还可以下载mol格式的化合物3D结构源文件，可直接导入到ChemDraw、ISIS Draw、Sybyl等软件中。此外，还可查看化合物的供应商信息。 ChemExper is a company joining together the areas of chemistry, computer science and telecommunication. The ChemExper Chemical Directory is a free service that allows to find a chemical by its molecular formula, IUPAC name, common name, CAS number, catalog number, substructure or physical characteristics as well as chemical suppliers. This database contains currently more than 10 millions chemicals, 16000 MSDS, 10000 IR spectra and more than 2000 chemical suppliers. You may also SUBMIT your own data!

Fresheye是日本综合性搜索引擎，提供日本最新的互联网消息以及新闻、音乐、图片、视频、酒店、博客等内容的搜索。 「フレッシュアイ」終了のお知らせ | フレッシュアイ

俄罗斯最大的搜索引擎 Yandex is a technology company that builds intelligent products and services powered by machine learning. Our goal is to help consumers and businesses better navigate the online and offline world. Since 1997, we have delivered world-class, locally relevant search and information services. Additionally, we have developed market-leading on-demand transportation services, navigation products, and other mobile applications for millions of consumers across the globe. Yandex, which has 17 offices worldwide, has been listed on the NASDAQ since 2011.