anulus
n. 环（同 ring）
v. 环绕（同 ring）
例句
Besides aging, weight bearing is probably a key factor of the increase of anulus fibrosus cells apoptosis.
除衰老外，负重可能是纤维环细胞凋亡增加的关键因素。
In the control group, fibrous anulus was intact.
对照组保持纤维环完整。
Summary of Background Data. Tears are evidence of structural failure involving the anulus .
数据信息概要：裂隙是包括纤维环在内结构失效的证据。
