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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

时间：2021-07-20 04:37 关键词：船舶辅助机械

答案解析

D

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