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| English thesaurus | |||
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| PCI | |||
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Plant Control : 15 phrases in 10 subjects |
| Automatic control | 1 |
| Chemistry | 2 |
| Economics | 1 |
| Electronics | 2 |
| Environment | 2 |
| Health care | 2 |
| Medical | 1 |
| Name of organization | 1 |
| Natural resourses and wildlife conservation | 1 |
| Natural sciences | 2 |