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

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

出自：海船船员证

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