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Signal maintainer
/sˈɪɡnəl meɪntˈeɪnə/
/sˈɪɡnəl meɪntˈeɪnɚ/
Noun (1)
"signal maintainer"의 정의 및 의미
Signal maintainer
명사
01
a person who ensures that train signals are functioning properly and safely
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