请教tap hole? ... calcium carbide accumulated on the bottom of furnace is discharged through the tap hole, synthesizing gas through the flue in the top of the furnace. 。。。 积聚在炉底的碳化钙由排放口排出,合成气体由位于炉顶的烟道排放。 tap hole -- 排泄口,排放口 discharge -- 排放, 排出 最后一句synthesizing gas (is discharged) through the flue in the top of the furnace 中的 is discharged 省略掉了。查看更多