轨道天文观测
orbiting astronomical observation
天文轨道观测站
orbiting astronomical observatory
OAO
高能观测天文台
high-energy astronomical observatory (HEAO
轨道天文台
orbiting astronomical observatory
OAO
高级轨道发射操作
advanced orbital launch operation
高能天文观测站
high energy astronomy observatory
太空轨道观测卫星
OAO Orbiting Astronomical Observatory
大地天文观测
geodetic astronomic observations
geodesy astronomic observation
红外天文观测
infrared astronomy observation
IR astronomical observation
infrared astronomy observatory
球载天文观测
balloon-borne astronomical observation
天文观测
astronomical observation
astronomical sight
celestial observation
astronomical observations
astronomical
天文观测设备与技术
astronomical facilities and technique
天文观测设备与仪器
instruments and techniques