单词	disk
释义	Disk The area inside a circle. Correctly speaking, a circle has no area (it is just the edge), but a disk does. But in practice people think of a circle as the edge or the enclosed space, or both. A disk is "closed" when it includes the bounding circle, and open if it does not. Also spelled "disc". See: Circle
随便看	maths matrix maximum mean mean deviation measure measure of central tendency measurement median median of triangle mega- member metre | meter metric system micro- midday midnight midpoint mile millennium milli- milligram millilitre | milliliter millimeter | millimetre million

数学辞典收录了1200条数学词条，基本涵盖了常用数学知识及数学英语单词词组的翻译及用法，是数学学习的有利工具。