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单词
emergency lighting
释义
emergency lighting
Encyclopedia
工学
公路隧道照明
释
emergency lighting
应急照明
当隧道内正常照明系统突然停止工作,为保障其内部交通运输和人员安全而设置的短时照明设施。
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linearly normal curve
linearly ordered
linearly ordered class
linearly ordered group
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