tap hole

基本解释

Dust collecting unit shall work for dedusting of the tap hole and the outlet of the hot-metal ladle.
集塵單位工作，應爲除塵的水龍頭孔和插座的熱點-金屬包。
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At present, tap hole drills used in blast furnace are classified as pneumatic, electric and hydraulic.
目前，高爐開鉄口機根據動力源可以分爲氣動、電動、液壓三種類型。
Eroded thickness in self-baking carbon brick below tap hole central line appears as gradual increase because of enhancing permeability of hot metal to the brick.
自焙碳甎的侵蝕從鉄口中心線曏下侵蝕厚度增加的原因是鉄水對自焙碳甎滲透性增強的結果。

It falls into the basket and that completes a hole. If for some reason the discdoesn't fall into the basket, you still need to tap out and into the basket."