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国家计量标准(JJ)
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Verification Regulation of Tachometer
JJG 105-2000
Verification Regulation of Withstanding Voltage Tester
JJG 795-1992
Verification Regulation of AC Digital Powermeter
JJG 780-1992
Verification Regulation of Liquid Manometer (Grade Ⅱ&Ⅲ)
JJG 241-1981
Verification Regulation of Standard Piston Pressurevacuum Gauge (Grade Ⅱ& Ⅲ)
JJG 239-1994
Verification Regulation of Piezoelectric Accelerometer
JJG 233-1996
Verification Regulation of Industry Platinum Copper Resistance Thermometers
JJG 229-1998
Verification Regulation of Bimetallic Thermometers
JJG 226-2001
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