纯数 meaning in Chinese

cardinal number

The specific gravity of a material is the ratio of its density to that of water and is therefore a pure number .
物质的比重指的是物质的密度与水的密度的比值，所以是纯数。
Excellent results in university entrance examinations , particularly in pure mathematics
数学系一年级入学成绩及纯数成绩优异
There are three undergraduate programs that lead to the degree bachelor ' s of science in mathematics : a general mathematics option , an applied mathematics option for those who wish to specialize in that aspect of mathematics , and a theoretical mathematics option for those who expect to pursue graduate work in pure mathematics
大学部有三种数学学士的课程规划：一般性数学学位、针对想要钻研应用数学的应数学位、针对想要研究纯数的理论数学学位。