... sensitive relay 灵敏继电器 sensitive relays 灵敏继电保护装置 sensitive resistor 灵敏电阻器 ...
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The authority will shut down power to its signal system if it appears that large amounts of water have entered the tunnels, to prevent the salty water from doing added damage to sensitive electronic relays.
WSJ: Salt Water Puts City's Subway System 'in Jeopardy'
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