词汇	periphery speed
释义	periphery speed un.圆周速度
随便看	groundless news groundless optimism groundless rumors groundless rumour groundless suspicion Groundless worries or anxiety groundlevel concentration ground level concentration ground-level concentration ground-level concentration of air pollution groundlevel ground-level corrosion ground level finding ground-level finding ground leveling ground leveling up ground-level inversion ground level line ground levelling ground-level loader Ground-level Police Officer ground level pollutant concentration ground-level pollution ground-level release ground level roundabout