用 K 型热电偶测某设备的温度,测得的热电势为 20mV ,(室温)为 25C ,则设备的温度为: A.510.4°C B.508.4°C C. 506.4°C D. 504.4°C
A.
510.4℃
B.
508.4℃
C.
506.4℃
D.
504.4℃
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