盾构支承环的英文

• supporting ring of shield

• 盾:    shield guilder; dong; rupiah
• 构:    construct; form; compose
• 支承:    fulcrum bearing; pecker bloc ...
• 环:    ring; hoop
• 支承环:    back up ring; backup ring; bearing ring; carrier ring; male adapter; pivot ring; support ring; supporting ring; wire ring