Machinery operating features are designed to help conserve energy.Which of the following results will not contribute to energy conservation?()
A. Reduction of friction
B. Insulation of hot surfaces
C. Lubrication of moving parts
D. Elevation of cooler outlet temperature
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在正常供电构型下,DCESSBUS如何得到电源?
A. 来自TR1(DC BUS 1)
B. 来自ESS TR
C. 来自TR2(DC BUS 2)
D. 来自电瓶2