The connecting rod little end is connected to the piston pin.
连杆小头连接着活塞销。
Research of Heterogeneous Type Piston Pin Boss Hole Closed Loop Processing System.
异型活塞销孔闭环加工系统研究；
The mechanism is comprised of steel sleeve, water nozzle, spring, positioning pin and piston.
装置由钢套、水嘴、弹簧、定位销和活塞等组成。
Research on boring mechanism for piston noncircular pin hole;
简述了采用活塞异形销孔的必要性及其结构特点。
Research on boring mechanism for piston noncircular pin hole;
简述了采用活塞异形销孔的必要性及其结构特点。
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