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to phrases
reference beam
earth.sc.
Referenzstrahl
m
;
Referenzstrahlbuendel
m
;
Bezugsstrahl
m
opt.
Vergleichsstrahl
m
;
Vergleichsstrahlengang
m
reference beam:
6 phrases
in 2 subjects
Medical appliances
1
Optics
branch of physics
5
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