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communication and navigation
 communication and navigation
space 通信与导航
| airborne radio
 airborne radio
telecom. 机载无线电
| instrumentation
 instrumentation
el. 仪器,仪表
manag. 检测仪器; 计器装设
met. 仪器; 仪表; 装置; 仪器使用; 仪器配备

to phrases
communication and navigation
space 通信与导航
communication and navigation airborne radio instrumentation
: 19 phrases in 5 subjects
Air defense2
Aviation10
Navigation2
Space3
Technology2