mercury-vapour lamp
名词 n.
英文释义
名词 n.
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a gaseous discharge lamp in which the arc discharge takes place in mercury vapour; used for highway illumination and as an industrial source of ultraviolet radiation
— By night the carriage yard is illuminated by mercury vapour lamps on 50ft lattice steel towers remotely controlled from the diesel depot.
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数据来源: Wiktionary