Read Edit View history 西弗 xīfú sievert Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 西弗 · xīfú · sievert 2026/03/04 西弗 xīfú sievert sievert (Sv), a unit of radiation damage used in radiotherapy 这种医疗检查产生的辐射剂量约为两个毫西弗。 created sense Mar 4, 2026, 02:25 AM