名词

1.不可数名词： 巨大，广大

2.不可数名词： 重大，重要

3.不可数名词： 量；大小；强度；音量

4.可数名词：【天】星等（指星的亮度）

5.可数名词：【地】震级

英语解释

a number assigned to the ratio of two quantities; two quantities are of the same order of magnitude if one is less than 10 times as large as the other; the number of magnitudes that the quantities differ is specified to within a power of 10

the property of relative size or extent (whether large or small)

relative importance