1873 Watts Fownes'Chem. (ed. 11) 424The Diammonio-platinous and Tetrammonio-platinic Compounds. 
Ibid. ,These tetrammonio-platinous compounds may also be regarded as salts of diammoplatoso-diammonium. 
| 词汇 | diammonio- | 
| 词根词缀 | OED 
 
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