ASTM A697/A697M-03 Standard Test Method for Alternating Current Magnetic
leunghb · 2010-01-30 07:48 · 52376 次点击
ASTMA697/A697M-03StandardTestMethodforAlternatingCurrentMagneticPropertiesofLaminatedCoreSpecimenUsingVoltmeter-Ammeter-WattmeterMethods
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