2015-07-21
446
| 1. Blowing ventilation | a) приточная вентиляция |
| 2. Coarse dust | b) крупная пыль |
| 3. Exhaust ventilation | c) вытяжная вентиляция |
| 4. Forced ventilation | d) принудительная вентиляция |
| 5. Height and width clearances | e) габариты по высоте и ширине |
| 6. Maintenance supervisor | f) инспектор по техобслуживанию |
| 7. Measuring rod | g) измерительная рейка |
| 8. Negotiate curve | h) проходить кривую |
| 9. Rail grinding | i) шлифовка рельсов |
| 10. Screed | j) штукатурный маяк |
| 11. Track section | k) путевой участок |
| 12. Trackwalker | l) обходчик |
| 13. Upgrading the track | m) улучшение состояния пути |
Exercises:
Answer the questions.
1. What are the main factors of air contamination in tunnels?
2. Are there any distinct operations in tunnel maintenance? What are they?
3. What problems are caused in railway tunnels by the accumulation of dust?
4. What does a maintenance crew examine to prevent derailment?
5. What instruments are used for testing tunnel height and width clearances?
6. Do the gutters appear to be one of the vital elements in tunnel operation?
7. Why are the ventilation facilities so essential for vehicular tunnels?
8. What ventilation types are used in tunnels?
9. Why do safety measures depend on tunnel lightning?
