Planetary-stage gear is mainly composed of sun wheel, planetary gear, internal ring gear, etc.

行星级齿轮传动主要由太阳轮、行星轮、内齿圈等组成。

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The ratio of rim thickness to tooth height was defined for representing the flexibility of internal ring gear.

以轮缘厚度系数来描述内齿圈的柔性，以均布的弹簧约束来反映内齿圈与机体的配合情况。

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The system design variables are magnet external diameter of internal ring, internal diameter of external ring, depth of groove - ring and ampere turns.

系统设计变数为磁铁内环外径、外环内径、槽口深度和安匝数。

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The steering wheel contains an internal and external ring of sensors, where an airborne waft will activate the turn sensors, one across the top can activate the in-car entertainment and two across the face can control additional functions.

ENGADGET: Neonode's Proximity multi-sensing technology hands-on (video)