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Defects in electrical insulation
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Any defect that could potentially cause a signal failure.
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Running move derailment, английский
Any derailment occurring in the normal forward movement of a train on a running line after it has fully completed its marshalling and pre-journey examination.
Obstruction, английский
- Any defect in the track or track formation, or obstacle on, above or adjacent to the track which will prevent the safe passage of trains.
- Препятствие
- When a defensive player, instead of going after the ball, uses his body to prevent an offensive player from playing it.
- 1. something which blocks a passage or a blood vessel 2. the blocking of a passage or blood vessel
- [1] a reef, shoal, wreck, or other object making it necessary to change course in avoidance. [2] something that impedes a radar beam. because of diffraction there is some illumination behind an obstruction, with lower frequency beams tending to illuminate more of the shadow region than beams of higher frequency or shorter wavelength.
- Any buried object that lies completely or partially within the cross section of the microtunnel and that impedes continued forward progress along the design path and within allowable tolerances.
- Any object or feature that lies completely or partially within the cross-section of a microtunnel or drill that prevents continued forward progress.
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