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美国海军为监视海上苏联军舰游戈,制定了一项研制海洋监视卫星计划,已送交美国国防部予以审定。一俟批准,一九七八年年底就开始制造两颗海洋监视卫
The U.S. Navy, which is monitoring surveillance of Soviet naval vessels at sea, has formulated a plan to develop a marine surveillance satellite that has been sent to the U.S. Department of Defense for approval. As soon as it was approved, two marine surveillance guards began to be manufactured by the end of 1978