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Signaler
01
信号员
a person responsible for operating signals and ensuring safe movement of trains
例子
The signaler monitored the track for any signs of obstruction.
The signaler waved a green flag to indicate clearance for the train.
They relied on the signaler to maintain communication with train crews.
He trained as a signaler to advance his career in rail operations.
She communicated with the signaler to coordinate track switching.
