Coolant-temperature sensors; Diesel-engine exhaust test instruments; Electric, electronic, or electrochemical oxygen monitors and sensors for environmental use; Electrical transducers; Gas sensors for measuring gas concentration; Liquid level sensors; Nitrogen concentration detectors; Temperature sensors

'concentr':29,34 'coolant':2 'coolant-temperatur':1 'detector':35 'diesel':6 'diesel-engin':5 'electr':11,22 'electrochem':14 'electron':12 'engin':7 'environment':20 'exhaust':8 'gas':24,28 'instrument':10 'level':31 'liquid':30 'measur':27 'monitor':16 'nitrogen':33 'oxygen':15 'sensor':4,18,25,32,37 'temperatur':3,36 'test':9 'transduc':23 'use':21

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