上面两幅图是欧洲空间组织环境卫星的先进合成孔径雷达(ASAR)于2011年3月11日和16日拍摄的照片。
The images above were acquired by the Advanced Synthetic Aperture Radar (ASAR) on the European Space Agency's Envisat satellite on March 11 and 16, 2011.
三个卫星信息传播系统集中在世界上的美国、欧洲和中国，用于收集这些环境资料。
Three GEONETCast centres around the world—in America, Europe and China—receive these environmental data from the outfits that collect them.
三个卫星信息传播系统集中在世界上的美国、欧洲和中国，用于收集这些环境资料。
Three GEONETCast centres around the world—in America, Europe and China—receive these environmental data from the outfits that collect them.
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