signal check

名词 n.
中文释义

英文释义

名词 n.
  1. An instance where a train must stop at a red signal, or slow down before passing a signal displaying a yellow aspect.
    — Of the failures to do so on the 23 other occasions, six only were attributed to the performance of the locomotives and the remainder to signal checks and permanent way cautions, particularly in the week following a parcels train derailment at Northallerton.

词形变化

signal checks plural
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