偏心环 meaning in English

eccentric band
eccentric collar
eccentric hoop
eccentric ring
eccentric strap

Horizontal eccentric annulus
水平井偏心环空
Numerical analysis of laminar viscous non - newtonian liquid axial flows in eccentric annuli
偏心环空中非牛顿流体轴向层流的数值分析
Velocity distribution of unsteady flow of non - newtonian fluid ineccentric annuli with the inner cylinder reciprocating axially
流体在内管做轴向往复运动的偏心环空中非定常流的速度分布