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单词 alum crystal
释义

> as lemmas

alum crystal
a. General attributive, as alum crystal, alum house, alum powder, alum salt, etc.
ΚΠ
1568 Edinb. Test. I. f. 119v, in Dict. Older Sc. Tongue at Alom, Allom, Allum Ane puncheoun of alome bark.
1622 M. Drayton 2nd Pt. Poly-olbion xxviii. 146 Her earth with Allome veines so richly intermin'd.
1673 J. Ray Coll. Eng. Words 139 The Liquor..is conveyed to the Allom-house.
1732 T. Short Proposals for printing Hist. Mineral Waters ii. 171 The Crystals procured from the purple-colouring Salt in our Petrefactions, are dissolvable in about seven or eight times their Weight of Water, but Alum Crystals in not less than fourteen times their Quantity.
1830 G. Colman Random Rec. I. vi. 187 Most readers will pardon me for not taking them into the Alum-House, to explain the several methods of crystallization, &c.
1906 Amer. Naturalist 40 158 An alum crystal whose bearing surface was only a small fraction of a square centimeter.
1969 B. Ryan Your Child & First Year of School iii. 56 Play dough, if it is made from scratch from salt, flour, water, and perhaps a little alum powder as a preservative, gives an even broader experience of chemistry.
1991 C. Hill Tack 10 Partially vegetable tanned, the leather is then finished with a soaking in alum salts.
2001 O. Sacks Uncle Tungsten vii. 68 If I used an alum solution and a good seed crystal to start it off..the crystal would grow evenly.
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更新时间:2024/12/22 21:48:23