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среднеарифметическое отклонение профиля
stresses
automat.
center-line-average surface finish
tech.
arithmetic average roughness height
(ГОСТ 2789-73, соответствует параметру Ra в ANSI
xx007
)
среднеарифметическое отклонение профиля, Ra
automat.
surface average roughness
(
ssn
)
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