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Hasil cari dari kata atau frase: Block signal(0.02138 detik)
Found 1 items, similar to Block signal.
English → English (gcide)
Definition: Block signal
Block signal \Block signal\ (Railroads)
One of the danger signals or safety signals which guide the
movement of trains in a block system. The signal is often so
coupled with a switch that act of opening or closing the
switch operates the signal also.
[Webster 1913 Suppl.]