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單項選擇題

鼓風(fēng)機(jī)軸瓦溫度：﹤（）℃

A.60
B.70
C.50
D.75

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電捕絕緣箱溫度：（）℃

A.80-100
B.90-110
C.100-120
D.120-150

單項選擇題

電捕焦油器直流工作電流：（）mA

A.200-300
B.100-200
C.350-500
D.500-600

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