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gray英英字典_gray剑桥英语解释_gray柯林斯英文解释_花灯集英语字典
花灯集英语字典

gray

G 开头单词四级词汇专八核心词托福词汇

柯林斯词典

    gray /ɡreɪ/

  • 1. COLOR [美国英语] →see grey

  • 2. N the derived SI unit of absorbed ionizing radiation dose or kerma equivalent to an absorption per unit mass of one joule per kilogram of irradiated material. 1 gray is equivalent to 100 rads 格雷; 国际单位制中吸收离子辐射量的一个单位 ( symbol: Gy)

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剑桥词典