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    July 19

    死亡时间

      推断死亡时间:尸僵、尸斑及尸温。
      尸僵一般于死后1-3小时开始出现,最初出现在颜面部和眼肌,随后扩散到躯干的上下肢。12小时后,尸僵达到全身。尸僵持续6小时左右开始缓解,尸体恢复变软。
          尸斑在死后最快半小时后,血液因自身重力坠积于尸体的底部血管,该处皮肤出现紫红色的斑痕。尸斑最晚在死后4-10小时出现。它的颜色持续时间很长。
          尸体的温度大约每小时降1度。肌肉组织和环境的温度对尸体温度影响很大。胖人的尸温比瘦人的降低得慢;温暖室内的尸温比寒冷室外的冷得慢。[常温(98.6°F)-尸体直肠温度]/1.5=时间

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