The sealing rings are in four parts and pressed together around the piston rods by means of （）.
举一反三
- A-frames and cylinder block is held together by （） to form a rigid structure. A: connecting rods B: piston rods C: tie rods D: jack-bolt
- Block group contains______. A: connecting rods,crankshaft and flywheel B: pistons,connecting rods and oil pan C: cylinder block,cylinder head and oil pan D: piston rings,gasket and connecting rods
- The position of the piston parts in relation to each other is secured by means of （） in the crown.
- The position of the piston parts in relation to each other is secured by means of （） and a dowel pin in the crown.
- The piston rings are manufactured with a diameter （） the bore of the cylinder.