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单词 opacimeter
释义

opacimeter

/ˌəʊpəˈsɪmɪtə/ /əʊˈpasɪmiːtə/
noun
An instrument for measuring the opacity of a body or substance, especially by measuring the amount of light it reflects.

Origin

Early 20th century; earliest use found in Chemical Abstracts. From opac- + -imeter, after French opacimètre.

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更新时间:2025/3/23 12:19:35