V2EX microgram

Microgram

定义 Definition

microgram微克,质量单位,等于一百万分之一克(1 g = 10 g)。常用于药物剂量、营养成分、实验测量等语境。

发音 Pronunciation

/makrrm/

例句 Examples

A microgram of vitamin B12 can make a difference.
一微克的维生素B12就可能产生影响。

The lab reported that the contaminant level was only a few micrograms per liter, but it still exceeded the safety limit.
实验室报告称污染物浓度只有每升几微克,但仍然超过了安全限值。

词源 Etymology

由 **micro-**(“微小的”,源自希腊语 mikros,意为“小”)+ gram(“克”,源自法语 gramme,与希腊语 gramma “重量单位/小重量”相关)构成,字面意思就是“非常小的克”。

相关词 Related Words

文学与著名作品 Literary Works

  • Primo Levi《The Periodic Table》(《元素周期表》):书中涉及化学与实验测量语境,常见到以微小单位描述物质量的表达(包括微克级别的概念)。
  • Richard Preston《The Hot Zone》(《血疫》):在生物安全与污染/样本分析的叙述中,会出现以微量单位描述物质或风险因素的用法(可见微克等计量概念的语境)。
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