■(in genealogies) daughter (家谱)同 daughter ■day(s) 同 day或days orbital period (Mars): 687.0d. (火星)轨道周期:687.0天。 ■[in combination](in units of measurement) deci- (度量单位)同 deci- ■(in travel timetables) departs (旅行时刻表)同 departs ■(d.)died (used to indicate a date of death) [表示死亡日期]同 died Barents, Willem (d.1597). 巴伦支,威廉(卒于1597年)。 Latin ■(Brit.)penny or pence (of pre-decimal currency) (英)。 (旧制货币)同 penny 或 pence £20 10s 6d. 20英镑10先令6便士。 ■(Chemistry)denoting electrons and orbitals possessing two units of angular momentum (化)(电子,轨函数)双角动量的 d-electrons. 双角动量电子。
symbol for
■(Mathematics)diameter (数)直径 ■(Mathematics)denoting a small increment in a given variable (数)微分 dy/dx. 函数y的微分与函数x的微分之比。