closed circle

[kləʊzd ˈsə:kl]

un. 闭锁环

[网络] 封闭空间；封闭地带；闭口圈

closed circle

[kləʊzd ˈsə:kl]

un. 闭锁环

[网络] 封闭空间；封闭地带；闭口圈