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通信与跟踪
 通信与跟踪
avia. communications and tracking
| 分系统
 分 系统
space subsystem
 分系统
agric. subsystem
busin. branch system
met. subsystem
reliabil. subsystem
space branch-system

to phrases
通信与跟踪
avia. communications and tracking
通信与跟踪
: 21 phrases in 6 subjects
Air defense2
Aviation3
Electronics8
General1
Space5
Technology2