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自动信号 zìdòng xìnhào
tech.	autosignaling; autosignalling
wind.	automatic signal
自动信号装置 zìdòng xìnhào
auto.	automatic signalling
自动式信号
tech.	automatic signal

自动信号: 97 phrases in 22 subjects

Agriculture	1
Air defense	3
Automobiles	1
Aviation	8
Chemistry	1
Communications	3
Construction	1
Drilling	1
Electric machinery	1
Electronics	12
Exhibitions	1
Explosives and Explosive Ordnance Disposal	1
General	3
Geophysics	4
Hydroelectric power stations	1
Industry	1
Military	1
Rail transport	1
Shipbuilding	3
Space	3
Technology	45
Telecommunications	1