| trin | |
| comp., MS | step |
| construct. | round; rung |
| el. | stage |
| energ.ind. | stage change point; step change point |
| stat. ed. | second level first stage; second level second stage |
| transp. | entry step |
| transp. construct. | steps |
|
1-trins : 3 phrases in 2 subjects |
| Electronics | 2 |
| Nuclear physics | 1 |