| 英文同义词: | COMBINATION PH / CONDUCTIVITY STANDARD;CONDUCTIVITY STANDARD, 1380 MICROSIEMENS/CM;CONDUCTIVITY STANDARD, 150,000 MICROSIEMENS/CM;CONDUCTIVITY STANDARD, 16 MICROSIEMENS/CM;CONDUCTIVITY STANDARD, 180 MICROSIEMENS/CM;CONDUCTIVITY STANDARD, 200 MICROSIEMENS/CM;CONDUCTIVITY STANDARD, 3000 MICROSIEMENS/CM;CONDUCTIVITY STANDARD, 300 MICROSIEMENS/CM |