| 单词 | puddle ball |
| 释义 | > as lemmaspuddle ball puddle ball n. Metallurgy (now historical) a rounded mass of iron formed by puddling. ΚΠ 1840 Civil Engineer & Architect's Jrnl. 3 104/2 Improvements in rolling puddle balls or other masses of iron. 1881 Trans. Amer. Inst. Mining Engineers 1880–1 9 187 The two-wheeled trolly is used in a rolling-mill to wheel the puddle-balls to the squeezer. 1985 Technol. & Culture 26 540 Even in the reverbatory puddling furnace sulfurous coal gases had time to combine with the ‘puddle ball’. < as lemmas |
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