Ceramic bearings are widely used in the high speed machine, especially in the micro or small turbine engines.

高速旋转机械，尤其是微小型发动机广泛采用陶瓷滚动轴承。

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The best place to start is the surprisingly small, almost underwhelming, turbine blades that make up the heart of the giant engines slung beneath the wings of the world's biggest planes.

我们最好先从一个极小极不起眼的地方说起，那就是组成吊在世界上最大飞机机翼下的引擎的涡轮机叶片。

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