Which term describes piston pins having bearing surfaces in both the piston bosses and connecting rod eye?（）
举一反三
- The small end of the connecting rod is attached to the piston with a （）.
- At bottom dead center, the centerline of the connecting rod usually coincides with the（） A: angularity of the piston motion B: inertia moment from the piston C: centerline of the cylinder D: centerline of the king pi
- The lower end of each piston rod is reduced in diameter to fit a bore in （）， this being secured to the piston rod by a nut.
- The outside diameter of the pipe is （） the diameter of the bore of the piston rod， the result being that an annular space formed between the piston rod and the pipe.
- Theessentialpartofthedieselengine,whosefunctionistoconverttheheatenergyintothemechanicalpower,isthe（）. A: crankshaft B: piston C: connectingrod D: bearing