防护圈的英文

• guard collar
• guard-ring

• 防护:    protect; shelter; shield; gu ...
• 圈:    circle; ring
• 护圈:    band guard; guard ring; protecting ring; protective ring; retainer; separator; shroud; sight protector
• 保护圈:    backup ring; rings of defense; screen circle
• 球护圈:    ball cage; ball retainer

其他语言

防护圈的法语：anneau de protection