1) closed mining
封闭开采
1.
While the working face is threatened by the disasters of coal spontaneous combustion,and this problem is difficult to be settled by ventilation,using closed mining method for coal and coalbed methane is considered to be effective.
当采面受到瓦斯、煤炭自燃等灾害威胁,采用通风方法难以解决时,认为采用封闭开采方案可取得较好效果。
2) box-type transformer
封闭开关
1.
The paper analyze the melting of high-voltage fuse in switch cabinet of box-type transformer and point out the main reason lies in the thermal power of fuse.
针对箱变封闭开关柜中熔断器过热烧坏的问题,从熔断器发热功率方面进行了分析,解决了夏季高峰负荷时熔断器过热爆炸的问题,达到了夏季高峰负荷时稳定供电的效果。
4) closed goaf
封闭采空区
1.
The air impulsion coupling model with roof caving and its difference solution under closed goaf;
封闭采空区顶板垮落-空气冲击耦合模型与差分解法
5) opening and closing of fault
开启或封闭
6) Seal and open
封闭与开启
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