HH-21-1球体影像资料（20210123）

本数据集记录了飞行试验中球体相关影像资料，包括主要操作过程照片或视频。主要内容是本次外场飞行试验中，与球体相关的地面操作、放飞操作的照片或者视频。照片由照相机拍摄，视频由录像机或场地记录仪拍摄，拍摄后导出并由存储介质保存。（协议共享）This dataset documents sphere-related image materials collected during flight tests, including photos and videos of core operational procedures. Its main content covers photos and videos of sphere-related ground operations and launch operations during this field flight test. The photos are captured by cameras, while the videos are recorded by video recorders or on-site field recorders, then exported and stored via storage media. (Shared under protocol agreement)