camera observation photographic satellite observation的意思|示意
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相机观测摄影卫星观测
camera observation photographic satellite observation的网络常见释义
照相观测 大地测量学英语词汇 - 现代测绘的日志,人人网,现... ... 卫星轨道改进 improvement of satellite orbit 照相观测 camera observation, photographic satellite observation 卫星激光测距 satellite laser ranging,SLR ...