| Subject | English | Spanish |
| med. | first pair | primer nervio craneal (par primum) |
| med. | first pair | primer par (par primum) |
| med. | first pair | nervio olfatorio (par primum) |
| industr., construct., met. | first pair of rollers | rubicón |
| industr., construct., met. | first pair of rollers | primer par de rodillos |