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to phrases
первичный эталон
stresses
anal.chem.
primäre Urtitersubstanz
el.
Primärnormal
n
mech.eng.
Urnormal
n
med.appl.
Hauptnormal
n
radio
Eichmaß
n
tech.
Urnormale
f
первичный
световой
эталон
opt.
Primärnormal
n
первичный эталон
:
4 phrases
in 4 subjects
Construction
1
Metrology
1
Optics
branch of physics
1
Technology
1
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