| 单词 | stopper-hole |
| 释义 | > as lemmasstopper-hole stopper-hole n. (see quot. 1869). ΚΠ 1869 S. V. J. Day Puddling 2/1 in W. J. M. Rankine Cycl. Machine & Hand-tools In the lower side of the charging door an opening is formed called the stopper-hole, through which the puddler introduces his rabble for working up the mass of iron. < as lemmas |
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