PO 4 | Na
2 | H
| NA | |
| agric. chem. | ammonium nitrate; nitrate of ammonia |
| corp.gov. | not applicable |
| Na | |
| agric. chem. | sodium; Na |
| h | |
| meteorol. | h; hr |
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| paseo (ulkomaalainen) | |||
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| presupuesto ordinario | |||
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PO : 25 phrases in 4 subjects |
| Chemistry | 16 |
| Electronics | 3 |
| General | 5 |
| Medical | 1 |