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单词 universal indicator
释义
universal indicator
/ ?ju?n??v??sl ??nd?ke?t?(r) /
  • 简明释义
  • 通用指示剂:一种化学溶液,由多种物质混合而成,根据不同的pH值产生许多不同的颜色变化,用于发现物质的酸碱性。
  • 权威例句
  • 1.

    The adoption of universal indicators on quality physical education and sport and an economic analysis about the valuable contributions that physical activity and sport make to social and economic development will be considered by this Commission.

    UNESCO: Social and Human Sciences

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更新时间:2025/1/10 5:11:12