A quantity in which direction is either not applicable (as in temperature) or not specified (as in speed). Compare vector.
A mathematical representation of a quantity with magnitude and no direction. Examples include temperature, pressure, mass, speed, and concentration.
科学参考收录了60776条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。