dimensionless coefficient

例句：

1. 1. The new model car has a dimensionless design that is both sleek and practical.
   这款新车型设计无尺寸，既时尚又实用。
2. 2. In the study of physics, dimensionless constants are used to describe phenomena without reference to size or shape.
   在物理学研究中，无尺寸常数用于描述现象，而不涉及尺寸或形状。
3. 3. The engineers were tasked with designing a dimensionless system that could perform complex calculations in real-time.
   工程师们被指派设计一个无尺寸系统，该系统能够在实时执行复杂计算。