garde en signalisation à fréquences vocales

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ochrona w sygnalizacji o częstotliwości akustycznej

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: 106 phrases in 30 subjects

Analytical chemistry	1
Brewery	4
Chemistry	4
Construction	24
Economics	5
Education	1
Electric traction	1
Environment	2
European Union	1
Fish farming pisciculture	1
Forestry	4
General	9
Human rights activism	2
Immigration and citizenship	6
International trade	1
Investment	2
Isolation	1
Law	7
Microsoft	1
Natural resourses and wildlife conservation	1
Nuclear physics	2
Power lines	4
Procedural law	10
Radio	1
Rail transport	3
Satellite communications	1
Social science	1
Sound recording	1
Telecommunications	4
Video recording	1