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| English | Chinese |
| earth resources observation system Data Center | 地球资源观测系统数据中心 |
| keep M under observation | 监视看 M |
| observation satellite Man-made device that orbits the earth, receiving, processing and transmitting signals and generating images such as weather pictures | 观测卫星 (沿地球轨道飞行的人造设备，接收、处理和传送信号，生成图像，如天气照片。) |