在连杆大头安装曲柄轴颈。
The lower end of the connecting rod fits the crankshaft journal.
连杆大头一般为剖分式，以便和曲轴相连。
The big end of the rod is split so that it can be connected to the crankshaft.
连杆一端(大头)与曲轴相连，另一端(小头)和活塞配合。
The connecting rod is attached to the crankshaft at one end (big end) and to the piston at the other end (small end).
连杆的大头与曲轴连接，小头与活塞链接。
The connecting rod links its large end to the crankshaft and its small end to the piston.
连杆的小头比安装在曲轴的大头小得多。
The top end of the rod is much smaller than the end that fits on the crankshaft.
连杆的小头比安装在曲轴的大头小得多。
The top end of the rod is much smaller than the end that fits on the crankshaft.
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