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satellite tracking
 satellite tracking
space 卫星跟踪
| ship
 ship
environ. 运输
hydroel.st. ; 船舶
interntl.trade. 用船运; 装货; 运送
navig.
space

to phrases
satellite tracking
space 卫星跟踪
tech. 人卫跟踪
satellite tracking ship
: 115 phrases in 14 subjects
Air defense2
Aviation8
Business1
Cartography1
Communications1
Earth sciences3
Electronics14
General2
Geophysics3
Information technology1
Nautical1
Space54
Technology21
United States3