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物理量是用于定量地描述物理现象的,一般可简称为量;它是科技书刊中使用最频繁的一类量。GB3101-93指出,物理量的量值为其数值与单位之乘积;物理量可用规定的斜体字母(量符号)来表示,单
Physical quantities are used to describe physical phenomena quantitatively, and can generally be abbreviated as quantity; it is the most frequently used quantity in technical books and periodicals. GB3101-93 states that the magnitude of a physical quantity is the product of its value and a unit; the physical quantity may be expressed in italic