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单词
reference material
释义
reference material
reference material
[
′ref·rəns mə‚tir·ē·əl
]
(analytical chemistry)
A material or substance whose properties are sufficiently well established to be used in calibrating an apparatus, assessing a measurement method, or assigning values to other materials.
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city of leeds swimming club
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city of light
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city of london archaeological society
city of london college
city of london community education centre
city of london corporation
city of londonderry
city of london festival
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更新时间:2025/10/31 9:25:20