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| EN-element; EN-poort; EN-schakeling | |||
| circuit ET: 62 phrases in 14 subjects |
| Agriculture | 2 |
| Chemistry | 1 |
| Communications | 9 |
| Earth sciences | 1 |
| Economy | 1 |
| Electronics | 15 |
| Finances | 1 |
| General | 6 |
| Hobbies and pastimes | 1 |
| Information technology | 17 |
| Marketing | 1 |
| Mechanic engineering | 1 |
| Patents | 4 |
| Transport | 2 |