| interval abbr. | |
| coal. | numero de retard; echelonnement |
| comp., MS | intervalle |
| construct. | .intervalle |
| el. acoust. | intervalle logarithmique de fréquences |
| gymn. | interstice |
| med. | brèche; lacune |
| scient. earth.sc. | intervalle logarithmique de fréquence |
| transp. | intervalle |
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unprotected : 20 phrases in 10 subjects |
| Communications | 1 |
| Computers | 2 |
| Construction | 4 |
| Electrical engineering | 1 |
| General | 2 |
| Information technology | 1 |
| Medical | 3 |
| Microsoft | 1 |
| Politics | 2 |
| Transport | 3 |