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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This paper deals with the massive defect of facing of 92507 bearing internal ring was analysed by means of OM, SEM and EDS.

本文针对92507轴承内圈端面上的块状物缺陷，采用OM, SEM和EDS等方法进行了分析。

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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)