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润滑系 rùnhuáxìstresses
auto. смазочная система
tech. система смазки
润滑系
: 68 phrases in 13 subjects
Automobiles5
Aviation1
Electronics1
General33
Jet engines1
Mechanic engineering2
Metallurgy2
Military1
Oil / petroleum1
Oil processing plants1
Shipbuilding1
Sociology1
Technology18