| 单词 | thorn-stone |
| 释义 | > as lemmasthorn-stone thorn-stone n. a concretion deposited on the faggots in a thorn house (see quot. 1848). ΘΚΠ the world > food and drink > food > food manufacture and preparation > salt manufacture > [noun] > deposit in thorn house thorn-stone1848 1848 E. Ronalds & T. Richardson tr. F. Knapp Chem. Technol. I. 266 The thorns become gradually covered with a thick coating (thorn-stone), consisting of carbonates of lime, magnesia, manganese, and protoxide of iron. 1885 C. G. W. Lock Workshop Receipts 4th Ser. 153/1 [The fagots] have to be changed every 2 years or so, on account of a deposit of calcium carbonate (‘thornstone’) which coats them. < as lemmas |
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