同义词
1)oil ring lubrication,ring lubrication,ring oiling,油环润滑2)ring oiling,油环润滑法3)disc-and-wipper-lubrieated bearing,ring lubricating bearing,油环润滑轴承4)oil ring-lubricated bearing,浮动油环润滑滑动轴承5)dic-and-wiper-lubricated bearing,固定油环润滑滑动轴承6)oil-ring-lubricated bearing,油环润滑滑动轴承
