词汇	obsv
释义	obsv Observe 观察
随便看	surface grammar surface grammar and depth grammar surfacegraphited surface graphited surfacegraphited black surface grating surface gravity surface gravity value surface gravity wave surface grease surface grid surface grinder surface-grinder surface grinder lathe surface grinding surface-grinding surface grinding face end surface grinding, face end surface grinding machine surface-grinding machine surface grinding machine for slideway surface grmmar surface ground coverage surface ground curvature deformation surface ground displacewment