OBS Studio OBS (Open Broadcaster Software) is free and open source software for video recording and live streaming. Stream to Twitch, YouTube and many other providers or record your own videos with high quality H264 / AAC encoding.
标准地图服务系统 标准地图依据中国和世界各国国界线画法标准编制而成,可用于新闻宣传用图、书刊报纸插图、广告展示背景图、工艺品设计底图等,也可作为编制公开版地图的参考底图。社会公众可以免费浏览、下载标准地图,直接使用标准地图时需要标注审图号。