| 单词 | rough epsom |
| 释义 | > as lemmasrough Epsom ΚΠ 1848 Mechanics' Mag. 2 Dec. 547/1 Bones or guano containing 75 lbs. of the phosphates, to 100 gallons of mother salts, or 300 lbs. of rough Epsom, dissolved in the smallest quantity of water possible. 1854 Pharm. Jrnl. & Trans. 13 622 The sulphate of magnesia forming the ‘rough Epsoms’ of the alum-maker. 1864 Rep. Brit. Assoc. Advancement Sci. 1863 710 The principal source of sulphate of magnesia for many years past has been the rough Epsoms obtained from the residual mother liquors of the Yorkshire Alum Works. < as lemmas |
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