雙射 Save Sign in to save words Simplified: 双射 shuāngshè ㄕㄨㄤ ㄕㄜˋ bijection math. Character by character 雙(shuāng)surname Shuang 射(shè)shoot A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0