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German to English translations [PRO] Tech/Engineering / diesel particulate filter specification
German term or phrase:aus dem in den zwei Ebenen...
Bei runden Substraten ist die Messung in zwei zueinander senkrechten Ebenen durchzuführen, bei symmetrisch ovalen Querschnitten in den zwei Symmetrieebenen. ***Aus den in den zwei Ebenen A und B ermittelten Abweichungen ist das geometrische Mittel als Gesamtabweichnung zu bilden:***
My feeble attempt at the second sentence is:
From the deviations determined by the two planes A and B, the geometrical average/mean*** constitutes the total deviation:
But that doesn't make sense to me. Can anyone help, please.
Explanation: Measurement with round substrata is to be executed on two vertically opposing plains, with symmetrically oval cross sections in those two planesymmetries. Total diviation is to be derived at by geometric means, of those determined deviations between plain A and B.