There is a large amount of energy wasted due to friction.

There is a large amount of energy wasted due to friction.

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Their parents don’t know them as well as their friends do.

Their parents don’t know them as well as their friends do.

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电源系统中,每台发动机均附带一台整体驱动发电机(IDG),IDG位于发动机的()A.发动机左侧,风扇包皮内B.发动机右侧,风扇包皮内C.发动

电源系统中,每台发动机均附带一台整体驱动发电机(IDG),IDG位于发动机的()A.发动机左侧,风扇包皮内B.发动机右侧,风扇包皮内C.发动机左侧,核心机匣内D.发动机右侧,核心机匣内

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