Both natural unit and dimensionless transformation are usual methods used in scientific research.
采用自然单位和无量纲变换都是科研上常用的方法。
The thoughtful reader might propose the charge of the electron as an obvious candidate for the third natural unit.
善于动脑筋的读者，可能提出电子的电荷作为第三个自然单位的明显的候选者。
"There's also the tricky issue that thoughts have no natural unit of measurement," Stafford writes.
斯塔福德写道：“比较棘手的是，想法并不能用单位来度量。”
"There's also the tricky issue that thoughts have no natural unit of measurement," Stafford writes.
斯塔福德写道：“比较棘手的是，想法并不能用单位来度量。”
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