negative pressure

简明释义

负压力

英英释义

例句

1.In HVAC systems, negative pressure 负压 can help control airflow and improve ventilation efficiency.

在暖通空调系统中，负压 negative pressure 可以帮助控制气流并提高通风效率。

2.The operating room uses negative pressure 负压 to ensure that airborne pathogens do not spread to other areas.

手术室使用负压 negative pressure 来确保空气传播的病原体不会扩散到其他区域。

3.To safely handle hazardous materials, workers must wear equipment that maintains negative pressure 负压 inside their suits.

为了安全处理危险材料，工人必须穿戴保持其套装内有负压 negative pressure 的设备。

4.During the storm, the house experienced negative pressure 负压 due to high winds, causing doors to slam shut.

在风暴期间，由于强风，房子经历了负压 negative pressure，导致门猛地关上。

5.The laboratory maintained a negative pressure 负压 environment to prevent contamination from escaping into the hallway.

实验室维持了一个负压 negative pressure 环境，以防止污染物逸出到走廊。

作文

In the field of science and engineering, the concept of negative pressure is often encountered, yet many people may not fully understand its implications or applications. Negative pressure refers to a condition where the pressure in a given system is lower than the surrounding atmospheric pressure. This phenomenon can be observed in various contexts, from everyday experiences to advanced scientific research. Understanding negative pressure is crucial for grasping how certain systems operate and for the development of new technologies.One of the most common examples of negative pressure can be found in the realm of fluid dynamics. When a liquid flows through a pipe and encounters a restriction, the velocity of the liquid increases, resulting in a decrease in pressure at that point, which can create a negative pressure zone. This principle is essential in designing efficient piping systems in various industries, including water supply and chemical processing. Engineers must carefully calculate the expected negative pressure to prevent potential issues such as cavitation, which occurs when vapor bubbles form and collapse, causing damage to pipes and pumps.In the medical field, negative pressure plays a significant role in wound healing. Negative pressure wound therapy (NPWT) is a treatment method that utilizes a vacuum dressing to promote healing in chronic wounds. By applying negative pressure to the wound site, this therapy helps remove excess fluid, reduce edema, and enhance blood flow to the area. The application of negative pressure stimulates the formation of granulation tissue, which is vital for the healing process. This innovative approach has transformed the way healthcare professionals manage complex wounds, leading to improved patient outcomes.Moreover, negative pressure is also a critical factor in environmental science, particularly in the study of air quality and ventilation systems. In buildings, maintaining negative pressure in certain areas can help prevent the infiltration of contaminants from outside, ensuring a healthier indoor environment. For instance, laboratories and clean rooms often utilize negative pressure environments to contain hazardous substances and protect workers from exposure. By controlling air pressure differentials, these facilities can effectively manage airflow and minimize the risk of contamination.Furthermore, the concept of negative pressure extends beyond physical systems and into psychological realms as well. In psychology, the term can metaphorically describe situations where individuals feel a sense of pressure or stress that is below their normal threshold. For example, when someone is under constant scrutiny or facing overwhelming challenges, they may experience a form of negative pressure that affects their mental well-being. Understanding this psychological aspect can help individuals develop coping strategies and seek support when needed.In conclusion, negative pressure is a multifaceted concept with applications spanning various fields, including engineering, medicine, environmental science, and psychology. Whether it is used to enhance fluid flow, promote wound healing, maintain air quality, or describe psychological states, the understanding of negative pressure is essential for professionals in these domains. As we continue to explore and innovate, the significance of negative pressure will likely grow, leading to new discoveries and advancements that benefit society as a whole.

在科学和工程领域，‘负压’的概念常常会被遇到，但许多人可能并不完全理解其含义或应用。‘负压’指的是在特定系统中的压力低于周围的气压。这种现象可以在各种环境中观察到，从日常经验到先进的科学研究。理解‘负压’对于掌握某些系统的运作方式以及新技术的发展至关重要。‘负压’的一个常见例子可以在流体动力学领域找到。当液体通过管道流动并遇到限制时，液体的速度会增加，导致该点的压力降低，这可能形成一个‘负压’区。这一原理在设计各种行业（包括供水和化学处理）的高效管道系统时至关重要。工程师必须仔细计算预期的‘负压’，以防止潜在问题，例如气蚀，当蒸汽泡形成并崩溃时，会对管道和泵造成损害。在医学领域，‘负压’在伤口愈合中发挥着重要作用。负压伤口治疗（NPWT）是一种利用真空敷料促进慢性伤口愈合的治疗方法。通过对伤口部位施加‘负压’，这种治疗帮助去除多余的液体，减少水肿，并增强该区域的血流。施加‘负压’刺激肉芽组织的形成，这对愈合过程至关重要。这种创新的方法改变了医疗专业人员管理复杂伤口的方式，改善了患者的治疗效果。此外，‘负压’在环境科学中也是一个关键因素，特别是在空气质量和通风系统的研究中。在建筑物中，维持某些区域的‘负压’有助于防止外部污染物的渗入，从而确保更健康的室内环境。例如，实验室和洁净室通常利用‘负压’环境来控制有害物质，并保护工人免受暴露。通过控制空气压力差，这些设施可以有效地管理气流，最小化污染风险。此外，‘负压’的概念不仅限于物理系统，还延伸到心理领域。在心理学中，这个术语可以比喻性地描述个体感受到的压力或压力低于其正常阈值的情况。例如，当某人在不断的审视下或面临压倒性的挑战时，他们可能会经历一种‘负压’，这会影响他们的心理健康。理解这一心理方面可以帮助个人制定应对策略，并在需要时寻求支持。总之，‘负压’是一个多层面的概念，涉及多个领域，包括工程、医学、环境科学和心理学。无论是用于增强流体流动、促进伤口愈合、维护空气质量，还是描述心理状态，理解‘负压’对于这些领域的专业人士来说都是至关重要的。随着我们继续探索和创新，‘负压’的重要性可能会增长，导致新的发现和进步，从而使整个社会受益。