 |
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| investigaciones técnicas | |||
| investigación técnica | |||
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technical research : 40 phrases in 10 subjects |
| Economics | 2 |
| Environment | 1 |
| General | 1 |
| Materials science | 1 |
| Name of organization | 24 |
| Natural sciences | 3 |
| Obsolete / dated | 2 |
| Patents | 2 |
| Politics | 2 |
| Research and development | 2 |