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用醋酸酥法破机，显微镜下观察内脏组织中花粉。12只溺死家兔的肺边缘组织检出率为100％（肺组织含花粉500粒／g左右），肝为50％，肾为33．3％；溺死后1天，1周、2周三组解剖，肺边缘组织花粉计数值无明显差异，证明花粉具有很强的抗腐败能力，可以作为水中高度腐败尸体死因鉴定依据之一。同时，水体沉积物花粉港能够反映入水地点的植被状况，为判断和认定溺死者的入水地点提供依据；此法尤其适用于冰水等硅藻和浮游生物很少的水体中的生前入水溺死的诊断。
Crisp with acetic acid broken machine, microscopic observation of visceral tissue pollen. The detection rate of the lung margins of 12 drowning rabbits was 100% (lung tissue containing pollen 500 / g), the liver was 50%, the kidney was 33.3%; drowning 1 day, 1 week, 2 weeks three groups There was no significant difference in anatomical and pulmonary marginal tissue pollen count, which proved that pollen has a strong anti-corruption ability and can be used as one of the evidences for identifying the cause of death of the highly corrupt corpse in water. At the same time, polluted waters of the sediment of water body can reflect the status of vegetation in the place where water enters, and provide basis for judging and admitting the place of drowned person; this method is especially suitable for drowning in pre-existing water in diatom and plankton-infested waters such as ice water diagnosis.