| 单词 | tapping-hole |
| 释义 | > as lemmastapping-hole tapping-hole n. (a) a tap-hole in a furnace; (b) a hole drilled in metal to be tapped or furnished with an internal screw-thread. ΘΚΠ society > occupation and work > equipment > furnace or kiln > furnace > parts of furnace > [noun] > openings for metal or crucible tympa1650 working arch1824 tap-hole1825 working door1839 tapping-hole1861 slag notch1882 society > occupation and work > materials > derived or manufactured material > metal > metal in specific state or form > [noun] > hole to be tapped with screw-thread tapping-hole1861 1861 W. Fairbairn Iron 133 The fire is to be carefully raked out at the tapping hole, which is again to be made good with loam. 1894 R. R. Bowker in Harper's Mag. Jan. 418 A channel known as the tapping-hole, taps the metal from the crucible. < as lemmas |
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