boundary (topology)边界: boundary; frontier; border; ...拓扑学: topology; analysis situs拓扑学: [数学] topology; analysis situs◇拓扑学家 topologist代数拓扑学: algebraic topology低维拓扑学: geometric topology下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:边界 (拓扑学),即可在微信中查询翻译