雙週期性 Save Sign in to save words Simplified: 双周期性 shuāngzhōuqīxìng ㄕㄨㄤ ㄓㄡ ㄑㄧ ㄒㄧㄥˋ double periodicity math. Character by character 雙(shuāng)surname Shuang 週(zhōu)week 期(qī)period 性(xìng)nature A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0