【单选题】
Which term describes piston pins having bearing surfaces in both the piston bosses and connecting rod eye?()
A、Stationary
B、Full floating
C、Semi-floating
D、Free rolling
A、Stationary
B、Full floating
C、Semi-floating
D、Free rolling
A、Degree of saturation B、Saturation temperature C、Superheated temperature D、Degree of superheat
A、common forwarding class B、forwarding equivalence class C、equivalent class characteristics D、forwarding class characteristics