1) manifold sealer
歧管封闭器
2) closed vessel
封闭容器，封闭管道系统
3) enclosed tubular cut-out
封闭管式熔断器
4) closed management
封闭管理
1.
The paper introduces closed management of slab yard and some work having been done such as enriching the varieties of charging and optimizing the structure of charging.
介绍了电炉厂在废钢场地封闭管理,丰富炉料品种和优化炉料结构等方面所做的工作,证实了精料方针能显著改善技经指标。
补充资料：封闭
①严密盖住或关住使不能通行或随便打开 ：大雪～了道路ㄧ用火漆～瓶口。②查封：～赌场。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条