/-{-{xiāngduìlùn}-}-/, /si̯aŋ⁴⁴⁻²² tu̯i²¹⁻⁵³ lun²²/, /si̯ɔŋ³³ tu̯i⁴¹⁻⁵⁵⁴ lun⁴¹/, /si̯ɔŋ⁴⁴⁻²² tu̯i²¹⁻⁵³ lun²²/, /si̯ɔŋ⁴⁴⁻³³ tu̯i²¹⁻⁴¹ lun³³/, /si̯ɔŋ⁴⁴⁻³³ tu̯i¹¹⁻⁵³ lun³³/, /sœːŋ⁵⁵ tɵy̯³³ lɵn²²/, /sœːŋ⁵⁵ tɵy̯³³ lɵn²²⁻³⁵/, /shiangdueyluenn/, /siangduèilùn/, /soeng1 deoi3 leon6 / soeng1 deoi3 leon6-2/, /soeng1 doey3 loen6 / soeng1 doey3 loen6-2/, /sêng1 dêu3 lên6 / sêng1 dêu3 lên6-2/、/ㄒㄧㄤ ㄉㄨㄟˋ ㄌㄨㄣˋ/
(物理學) 關於時空和重力的理論，主要由愛因斯坦創立。