“轮毂”造句

他已经在擦汽车轮毂了。
He was already buffing the car's hubs.

我在前后轮毂上都抹了润滑油，还调校了刹车。
I greased front and rear hubs and adjusted the brakes.

轴和轮毂通常用键固定在一起.
Shafts and hubs are usually fastened together by means of keys.

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