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испытание твёрдости по Роквеллу
stresses
chem.
Härteprüfer nach Rockwell
;
Härteprüfung nach Rockwell
;
Rockwellsche Kugeldruckprobe
el.chem.
Härteprüfung nach Rockwell
(HRA, HRB, HRC)
met.work.
Rockwell-Härteprüfung
n
испытание твёрдости по Роквеллу:
4 phrases
in 2 subjects
Chemistry
3
Metallurgy
1
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