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OCEAN SURVEILLANCE
AI. OCEAN 专家系统监督一种飞船专家系统
ocean surveillance
space 海洋监视[侦察]
tech. 海上监视
Ocean Surveillance
USA, space 海洋监视 (卫星)
OCEAN SURVEILLANCE: 48 phrases in 10 subjects
Air defense3
Aviation4
Earth sciences8
Electronics2
Nautical1
Navigation8
Shipbuilding1
Space13
Technology6
United States2