单词	metric space
释义	metric space noun : a mathematical set for which a metric is defined for any pair of elements Word History First Known Use 1919, in the meaning defined above
随便看	reactionaryisms reactionism reactionisms reactionist reactionists reactions reactivate reactivated reactivates reactivating reactivation reactivations reactivator reactive reactive arthritis reactive coil reactive component reactive factor reactive load reactive power reactive volt-amperes reactively reactiveness reactivenesses reactiver

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。