interlocking
adjective uk/ˌɪn.təˈlɒk.ɪŋ/ us/ˌɪn.t̬ɚˈlɑː.kɪŋ/
紧密连接的；（尤指）互锁的，咬合的
firmly joined together, especially by one part fitting into another
This jigsaw puzzle has 1,000 interlocking pieces. 这个拼图玩具有1000个互相咬合的部件。
The fish has strong jaws and sharp interlocking teeth. 这种鱼有强有力的颚和相互咬合的尖利牙齿。