outer ring with single raceway shoulder

例句：

1. 1. The outer ring of thesatellite is made of a lightweight material.
   卫星的外圈是由轻质材料制成的。
2. 2. The outerring of the ring is made of gold.
   戒指的外圈是金制的。
3. 3. The outerring of the bracelet is made of leather.
   手镯的外圈是皮革制的。