V2EX conversion factor

Conversion Factor

定义 Definition

conversion factor换算系数/转换因子。指把一种单位的数值转换为另一种单位时所乘(或所除)的固定比值(通常写成两个等值单位的比),用于保证数值与单位同时正确变换。

发音 Pronunciation (IPA)

/knvn fk.t/

例句 Examples

To convert kilometers to meters, use a conversion factor of 1,000.
把千米换算成米,使用换算系数 1,000。

In the lab, we applied the proper conversion factor to report the concentration in mol/L instead of mg/mL, ensuring the final result matched the required units in the protocol.
在实验室里,我们使用合适的换算系数把浓度从 mg/mL 换算成 mol/L,从而确保最终结果符合实验方案要求的单位。

词源 Etymology

conversion 来自拉丁语 conversio,有“转变、变换”之意;factor 源自拉丁语 factor,意为“做事的人”,在数学语境中逐渐引申为“因子、倍数”。合起来 conversion factor 就是“用于单位/量的变换的倍数(因子)”。/p>

相关词 Related Words

文学与经典作品 Literary Works

  • The Feynman Lectures on Physics(《费曼物理学讲义》):在物理量与单位讨论中常涉及用“换算因子”进行单位转换与量纲检查。
  • Perry’s Chemical Engineers’ Handbook(《佩里化学工程师手册》):工程计算与物性数据使用中频繁出现单位换算与相应换算因子的表述。
  • CRC Handbook of Chemistry and Physics(《CRC 化学与物理手册》):数据与单位系统并列呈现时,经常需要依赖换算因子进行跨单位体系转换。
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