英语词汇“scientific standard”的翻译、意思、用法、释义-英汉汉英双解词典-爱贷网

词汇	scientific standard
释义	scientific standard 基本例句科学标准 For many years, thescientific standardof length was a metal bar kept in a temperature controlled vault near Paris.多年来，长度的科学标准曾是一根金属棒，这根金属棒保存在巴黎附近的有温度调节的地下室里。
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