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ground support
avia. 地面保障设备
el. 地面支援
eng.geol. 地层支护
space 地面保障; 空中对地支援
ground support: 102 phrases in 13 subjects
Air defense2
Aviation39
Bridge construction1
Business2
Earth sciences1
Electronics18
Explosives and Explosive Ordnance Disposal1
General3
Geophysics2
Oil / petroleum2
Remote sensing1
Space25
Technology5