trunk canal

trunk canal [trʌŋk kəˈnæl]  [trʌŋk kəˈnæl] 

trunk canal 基本解释
干渠;
trunk canal 网络解释

1. 干渠:tertiary canal 斗渠,三级渠道 | trunk canal 干渠 | two-lane canal 双线运河