系统; 【连】 浇次; 连浇(① The 286-heat sequence of the slab caster involved 147 steel grade changes, 92 width changes, 47 tundish changes and 93 SEN changes. 这台板坯连铸机连浇 286 炉，其间更换钢种147个，变换铸坯宽度92次，更换中间包47个，更换浸人式水口 93 个。② As of this writing, thirty-five sequences have been cast over a period of 25 operating days. 到写作本文时，历时 25 个工作日完成了 35 个浇次。 ③Every time a SEN is worn out, or fails, the cast sequence is broken.. Another sequence must then be started with a new SEN and tundish. 每次浸人式水口用坏、失效，该浇次随即中断，开始下一个浇次就必须换用新的浸人式水口和中间包。)
