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à un étage
chem.	one-stage; one-step; single stage
mech.eng.	single-stage
nat.sc., agric.	one-layered; one-storied

à un étage: 39 phrases in 19 subjects

Agriculture	1
Astronautics	1
Astronomy	2
Chemistry	2
Construction	7
Earth sciences	1
Electronics	1
Environment	1
Forestry	1
General	2
High energy physics	1
Hobbies and pastimes	1
Industry	1
Mechanic engineering	4
Natural resourses and wildlife conservation	2
Technology	3
Telecommunications	3
Transport	4
Радиоактивное излучение	1