In a cunning economy, Mr Sauter USES the battery pack itself as the Bob of the pendulum.

出于经济眼光，索特使用电池组本身充当钟摆的浮子。

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The utility model USES the electromagnet to control and move the axial position of the pendulum Bob for automatically controlling the separation and the combination of the clutch.

本实用新型利用电磁铁控制移动摆锤的轴向位置来自动控制离合器的离与合。

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The pendulum bob is the moon.

ECONOMIST: Craftmade timepieces