tōng guò / fēn xī / shuāi biàn qū xiàn / kē xué jiā / kě yǐ / tuī duàn / yàng pǐn / de / bàn shuāi qī通过分析衰变曲线,科学家可以推断样品的半衰期。By analyzing the decay curve, scientists can infer the half-life of the sample.