活塞环端间隙 Piston ring end gap

活塞环开口间隙 Ring gap ; piston ring gap ; Ring gear

活塞环间隙 ring play ; piston ring gap

活塞环对口间隙 piston ring end clearance

活塞环端隙 piston ring side clearance ; ring gap ; ringendclearance

活塞环切口间隙 Ring Gap

活塞环端面间隙 piston ring side clearance

活塞环轴向间隙 piston ring axial clearance

活塞环上下间隙 shoulder play of piston ring

活塞环接口间隙 piston ring joint clearance ; piston ring gap clearance