dried blood

简明释义

血粉

英英释义

例句

1.The forensic team collected evidence, including dried blood, to analyze at the lab.

法医团队收集了证据，包括干血，以便在实验室进行分析。

2.She accidentally stepped on a patch of dried blood and felt a chill run down her spine.

她不小心踩到了一个干血的地方，感到一阵寒意袭来。

3.The detective found a small sample of dried blood in the corner of the room.

侦探在房间的角落发现了一小块干血样本。

4.During the autopsy, the pathologist noted the presence of dried blood around the wound.

在尸检过程中，病理学家注意到伤口周围有干血的存在。

5.The old crime scene still showed signs of dried blood on the floor.

旧犯罪现场的地板上仍然显示出干血的痕迹。

作文

In the realm of forensic science, the term dried blood refers to blood that has coagulated and lost its liquid form, often leaving behind a dark, reddish stain on various surfaces. The study of dried blood is crucial for criminal investigations, as it can provide valuable information about the events that transpired at a crime scene. For instance, forensic experts can analyze the composition of dried blood to determine the blood type, which may help identify the victim or the perpetrator. Moreover, the presence of dried blood can indicate the severity of an injury and the time frame in which it occurred, aiding investigators in reconstructing the timeline of a crime.The process of collecting and analyzing dried blood involves several meticulous steps. First, forensic technicians must ensure that they do not contaminate the sample. They use gloves and sterile tools to carefully collect the dried blood without introducing any foreign substances. Once collected, the sample is transported to a laboratory where advanced techniques such as DNA analysis can be employed. Through these methods, scientists can extract genetic material from the dried blood and compare it to DNA databases, potentially leading to the identification of suspects.Furthermore, dried blood can also tell stories beyond mere identification. The patterns and locations of dried blood stains can reveal the dynamics of a struggle or the positioning of individuals during a violent encounter. For example, if dried blood is found on a wall, it may suggest that the victim was injured in that particular spot, while the absence of dried blood in other areas could imply that the incident did not occur there. Such analyses can provide crucial context to the narrative of a crime, helping law enforcement officials piece together what happened.In addition to its significance in criminal investigations, dried blood also plays a role in medical research. Researchers studying diseases can examine dried blood samples to investigate pathogens or markers of certain conditions. This can lead to breakthroughs in understanding how diseases spread and affect the human body. For instance, the analysis of dried blood from historical populations has provided insights into the prevalence of specific diseases over time, helping us understand public health trends.In conclusion, the study of dried blood is multifaceted, impacting both forensic science and medical research. Its ability to provide critical information in criminal cases and contribute to our understanding of diseases makes it an essential area of study. As technology advances, the methods for analyzing dried blood will continue to improve, offering even more insights into the mysteries it holds. The next time we encounter dried blood, whether in a fictional narrative or a real-life scenario, we should appreciate the depth of knowledge that can be gleaned from this seemingly simple substance.

在法医科学领域，术语干血指的是已经凝固并失去液体形态的血液，通常在各种表面上留下深色的红褐色污渍。对干血的研究对于刑事调查至关重要，因为它可以提供关于犯罪现场发生事件的宝贵信息。例如，法医专家可以分析干血的成分以确定血型，这可能有助于识别受害者或肇事者。此外，干血的存在可以指示伤害的严重程度及其发生的时间范围，帮助调查人员重建犯罪时间线。收集和分析干血的过程涉及几个细致的步骤。首先，法医技术人员必须确保不污染样本。他们使用手套和无菌工具小心地收集干血，而不引入任何外来物质。一旦收集完毕，样本将被运输到实验室，在那里可以采用先进的技术，如DNA分析。通过这些方法，科学家可以从干血中提取遗传物质，并将其与DNA数据库进行比较，从而可能识别嫌疑人。此外，干血还可以讲述超越身份识别的故事。干血污渍的模式和位置可以揭示斗争的动态或暴力事件中个体的定位。例如，如果干血发现墙壁上，这可能表明受害者是在那个特定地点受伤，而其他区域缺乏干血可能意味着事件并未发生在那儿。这种分析可以为犯罪叙事提供关键背景，帮助执法官员拼凑出发生了什么。除了在刑事调查中的重要性，干血在医学研究中也发挥着作用。研究疾病的研究人员可以检查干血样本，以研究病原体或某些疾病的标志。这可以导致对疾病传播和影响人体的突破性理解。例如，对历史人群的干血分析提供了有关特定疾病随时间流行程度的见解，帮助我们理解公共卫生趋势。总之，干血的研究是多方面的，影响着法医科学和医学研究。它在刑事案件中提供关键信息并促进我们对疾病理解的能力，使其成为一个重要的研究领域。随着技术的进步，分析干血的方法将继续改善，为我们提供更多关于它所蕴含的奥秘的见解。下次我们在虚构叙事或现实场景中遇到干血时，我们应该欣赏从这种看似简单的物质中可以获取的深刻知识。