A small electric heating element in an internal-combustion engine that facilitates starting by preheating the air in a cylinder and is used especially in diesel engines.
装在内燃发动机内的小电热器，用以预热气缸内的空气以利发动，尤用于柴油发动机。
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。
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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