Backdata Backdata - 高效信息检索。它将是一个快速的、相关的和用户友好的搜索引擎。(It will be a fast, relevant and user-friendly search engine.)
IT之家 IT之家,青岛软媒旗下的前沿科技门户网站。快速播报科技行业新闻头条快讯和手机数码产品评测,关注智能车电动车、AR/VR虚拟现实、苹果iOS/iPadOS、鸿蒙OS、谷歌Android、微软Win11/Win10/Win7,紧盯iPhone/iPad、安卓智能设备手机等数码潮流。
OALib|免费论文搜索引擎 Open Access Library (www.oalib.com) is an academic search engine and publisher. You can download research papers for free and submit your paper to it. It is a shared academic database.