单词：outer race
outer race的用法和样例：
例句
- After the Battle of Hoth, Thrawn returned to Outer Rim mapping duty.霍斯战役后，索龙回到外环继续他的勘测任务。
- A keyway is machined on the outer race for the connection to the drive or drive member centered on its outside.外环有键槽用来与驱动件或被驱动件结合，并以外环为固定中心线。
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