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heliometer英英字典_heliometer剑桥英语解释_heliometer柯林斯英文解释_歐米惠必应词典
歐米惠必应词典

heliometer

H 开头单词

柯林斯词典

    heliometer /ˌhiːlɪˈɒmɪtə/

  • 1. N a refracting telescope having a split objective lens that is used to determine very small angular distances between celestial bodies 太陽儀

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