“non-contractibility”的概念、定义、习题解题方法及翻译-数学辞典

单词	non-contractibility
释义	non-contractibility 不可缩性
随便看	proper subsystem proper subvariety proper superset proper surface proper surface of second order proper time proper topology proper transformation proper triad proper triple property property C property P property P conjecture proper value proper value problem proper variation proper vector proper zero divisor pro-p-group proportion proportional proportional allocation proportional compasses proportional constant

数学辞典收录了72750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。