知识与财富的链接
介绍了量纲和单位两个不同概念。说明了一个量的量纲只表示该量的性属,不表示该量的大小。定性地给出了导出量与基本量之间的关系以及表示导出量纲的通式。阐明了导出单位和基本单位的关系及其表示方法,并讨论了量的全纲和单位之间的相互关系。
Two different concepts of dimension and unit are introduced. The relation between lead-outand basic quantities and a lead-out formula for common use are given. The telation between lead-outand basic units is elaborated and the mutual relation of quantity between dimention and unit dis-cussed.