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单词 plombgomme
释义 plombgomme Min.|plɔ̃gɔm|
[F., lit. gummy lead, f. plomb lead + gomme gum.]
= plumbogummite.
1839Ure Dict. Arts 746 Plomb-gomme. This lead ore..is of a dirty brownish or orange-yellow.1866Watts Dict. Chem. IV. 685 Plombgomme, syn. with Plumboresinite.1868Dana Min. (ed. 5) 577 S. Tennant (who died in 1815) is said to have first analyzed plombgomme and made it a combination of oxyd of lead, alumina, and water.
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更新时间:2024/12/22 16:07:38