Read Edit View history 放射性活度 fàngshèxìnghuódù radioactivity Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 放射性活度 · fàngshèxìnghuódù · radioactivity 2026/03/04 放射性活度 fàngshèxìnghuódù radioactivity radioactivity 实验中需要精确测量物质的放射性活度。 created sense Mar 4, 2026, 02:25 AM