closed system
短语词组
- closed feed system 封密给水系统;闭式给水系统
- closed -system trap 封闭型圈闭
- closed pipeline system 闭式管道输送系统
- closed ullage system 闭式液位测量装置
- closed center system 中位关闭系统
- closed class system 封闭式阶级制
- closed pipe system 封闭管道系统
- closed fireroom system [机]闭式火室系统
- closed hydraulic system 闭式液压系统 返回 closed system