A.The surface of the piston ring
B.The gap between the ends of the ring
C.The clearance between cylinder and piston
D.The clearance between cylinder and piston rings
E.The clearance between piston and piston rings
A.The surface of the piston ring
B.The gap between the ends of the ring
C.The clearance between cylinder and piston
D.The clearance between cylinder and piston rings
E.The clearance between piston and piston rings