一部分 | yī bù fèn | portion / part of / subset | |
一部分 | yī bù fen | portion / part of / subset | |
子集 | zǐ jí | subset | |
子集合 | zǐ jí hé | subset (math.) | |
金丝燕 | jīn sī yàn | Aerodramus, genus of birds that use echolocation, a subset of the Collocaliini tribe (swiflets), two of whose species &ndash / Aerodramus fuciphagus and Aerodramus maximus &ndash / build nests harvested to make bird's nest soup | |
真子集 | zhēn zǐ jí | proper subset | |
闭子集 | bì zǐ jí | closed subset (math.) |