| 11. | These SPAD indicators are placed beyond the protecting stop signal and are normally unlit.
|
| 12. | Stop signals are used to protect platforms or block sections.
|
| 13. | DeCurtis had been cited twice, in 1986 and 1989, for running through stop signals.
|
| 14. | But IBM's electrical fuses stop signals in an unusual way.
|
| 15. | Italian news reported suggested the express might have ignored a stop signal at Castello station.
|
| 16. | A particular signal box may control one or more stop signals on each running line.
|
| 17. | In addition to twice running stop signals, DeCurtis derailed once and missed a station once.
|
| 18. | By contrast, in methanogenic archaea it was not possible to identify any unambiguous UAG stop signal.
|
| 19. | Junction stop signals were provided with two main signal heads, one mounted higher than the other.
|
| 20. | Propagating through its channel the stop signal latches the flip-flops of the start signal's delay line.
|
