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中华人民共和国国家标准容积真空泵性能测量方法MeasurementMethodsofPositive-DisplacementVacuumPumpsPerformanceCharacterstics¥//本标准参照采用国际标准ISO1607/工一19...
People’s Republic of China National Standard volumetric vacuum pump performance measurement method MeasurementMethodsofPositive-DisplacementVacuumPumpsPerformanceCharacterstics ¥ / / This standard reference to the international standard ISO1607 / a 19 ...