Unbalanced train segments for Engine

The sound of a machine designed to produce mechanical energy. Combustion engines burn a fuel to create heat, which then creates a force. Electric motors convert electrical energy into mechanical motion. Other classes of engines include pneumatic motors and clockwork motors. Wikipedia

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We estimate this class has high quality

In a random sample of videos for this class, we found 9 / 9 (100%) were accurate. Note that quality in the unbalanced training set may be significantly lower. Learn more.
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Unbalanced train videos for Engine (15,870)