词汇	孔环
释义	孔环医annulus；grommet；halo；pore ring
随便看	prestressing camber pre-stressing chord truss prestressing concrete prestressing concrete beams Prestressing concrete construction prestressing concrete simply supported beam prestressing concrete slab prestressing concrete T type girder prestressing control prestressing crafts prestressing degree prestressing device prestressing device prestressed concrete prestressing device rolling stand prestressing effect prestressing equivalent load prestressing force pre-stressing force prestressing force after transfer prestressing force anchor prestressing force concrete prestressing force concrete pile prestressing force concrete tube stake prestressing force construction prestressing force pile