created sense approved 周期系/週期系 · zhōuqīxì · periodic system — "Initial import from upstream dictionary"
周期系 / 週期系
zhōuqīxì
periodic system
the periodic system of chemical elements; periodicity in chemistry
周期 (literal) → 周期 · zhōuqī · period 系 (literal) → 系 · xì · system (general)
Changed: simplified, traditional, gloss, definition, pinyin, variant pinyin, variants, separable parts, decomposition