frictional influence
2.frictional inflation
3.Fill lube to the frictional parts termly.
4.Frictional loss and integrate design of engine
5.Cork Rubber Frictional Material and Its Forming
7.The forces due to friction are called frictional forces.
8.a friction clutch in which the frictional surfaces are disks.
9.The optimal portfolio in the frictional market and its algorithm
