单选题 1分

Thermocouple pyrometers are used on large, main propulsion diesel engines to indicate the temperatur...

Thermocouple pyrometers are used on large, main propulsion diesel engines to indicate the temperature of the ____.
  • A. cooling water leaving each cylinder
  • B. fuel oil entering the injector
  • C. exhaust gases at various locations
  • D. lube oil at the bearing supplies

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