简述发动机连杆的材料与加工技术。
Material and process of engine connecting rod are discussed.
发动机的动力机构实际上就是曲柄连杆机构。
The power mechanism of the engine is actually called the crankshaft and connecting rod mechanism.
发动机的动力机构实际上就是曲柄连杆机构。
The power mechanism of the engine is actually called the crankshaft and connecting rod mechanism.
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