diffusion tube

简明释义

扩散管

英英释义

例句

1.The air quality monitoring station uses a diffusion tube to measure nitrogen dioxide levels.

空气质量监测站使用扩散管来测量二氧化氮的水平。

2.After a month, we retrieved the diffusion tube to analyze the collected samples.

一个月后，我们取回了扩散管以分析收集的样本。

3.By placing the diffusion tube in various locations, researchers can gather data on pollution sources.

通过将扩散管放置在不同地点，研究人员可以收集污染源的数据。

4.Environmental agencies often deploy diffusion tubes to monitor air pollutants in real time.

环境机构通常部署扩散管以实时监测空气污染物。

5.The diffusion tube is an effective tool for long-term air quality assessment in urban areas.

在城市地区，扩散管是进行长期空气质量评估的有效工具。

作文

The study of air quality has become increasingly important in recent years due to the rising levels of pollution in urban areas. One of the key tools used for monitoring air quality is the diffusion tube, which provides a simple and cost-effective way to measure concentrations of various pollutants in the atmosphere. A diffusion tube is a small device that relies on the principle of diffusion to collect air samples over a specified period. Typically made from a plastic or glass tube, it contains a reactive chemical that interacts with specific pollutants, such as nitrogen dioxide (NO2) or sulfur dioxide (SO2). The operation of a diffusion tube is quite straightforward. When placed in an open environment, air enters the tube through a porous end. As the air flows into the tube, pollutants diffuse into the reactive chemical inside. The amount of pollutant that accumulates in the tube can then be analyzed in a laboratory to determine its concentration in the air. This method is particularly useful for long-term monitoring, as it can provide average concentrations over days or weeks, rather than instantaneous measurements.One of the significant advantages of using a diffusion tube is its affordability. Unlike more complex air quality monitoring systems, which may require expensive electronic sensors and continuous power supply, diffusion tubes are relatively inexpensive and can be deployed widely across different locations. This makes them an attractive option for local governments and environmental agencies looking to assess air quality without incurring high costs.Moreover, diffusion tubes can be used in various settings, including urban areas, industrial sites, and near busy roads. By strategically placing these tubes in different locations, researchers can gather valuable data on how pollution levels vary across different environments. This information is crucial for developing effective strategies to combat air pollution and protect public health.However, while diffusion tubes offer many benefits, they also have limitations. For instance, the accuracy of the results can be influenced by environmental factors such as temperature and humidity. Additionally, since they measure average concentrations over time, they may not capture short-term spikes in pollution that could occur during peak traffic hours or industrial activities. Therefore, it is essential to use diffusion tubes in conjunction with other monitoring methods to obtain a comprehensive understanding of air quality.In conclusion, diffusion tubes are a valuable tool for monitoring air quality, providing a cost-effective and straightforward means of measuring pollutant concentrations in the atmosphere. As urbanization continues to rise and air pollution remains a pressing issue, the role of diffusion tubes in environmental monitoring will likely grow. By utilizing this technology alongside other methods, we can better understand and address the challenges posed by air pollution, ultimately leading to healthier and more sustainable communities.

近年来，由于城市地区污染水平的上升，空气质量的研究变得越来越重要。用于监测空气质量的关键工具之一是扩散管，它提供了一种简单且经济有效的方法来测量大气中各种污染物的浓度。扩散管是一种小型设备，依赖扩散原理在指定时间内收集空气样本。通常由塑料或玻璃管制成，它包含一种与特定污染物（如二氧化氮（NO2）或二氧化硫（SO2））相互作用的反应化学物质。扩散管的操作相当简单。当放置在开放环境中时，空气通过多孔的一端进入管内。随着空气流入管中，污染物扩散到内部的反应化学物质中。然后可以在实验室分析管内积累的污染物数量，以确定其在空气中的浓度。这种方法对于长期监测特别有用，因为它可以提供几天或几周的平均浓度，而不是瞬时测量。使用扩散管的一个显著优点是其经济性。与可能需要昂贵电子传感器和持续电源的更复杂的空气质量监测系统相比，扩散管相对便宜，可以广泛部署在不同地点。这使得它们成为地方政府和环境机构评估空气质量的吸引选项，而无需承担高昂的费用。此外，扩散管可以在各种环境中使用，包括城市地区、工业场所和繁忙道路附近。通过在不同位置战略性地放置这些管子，研究人员可以收集关于污染水平如何在不同环境中变化的宝贵数据。这些信息对于制定有效的空气污染对策和保护公众健康至关重要。然而，虽然扩散管提供了许多好处，但它们也有局限性。例如，结果的准确性可能会受到温度和湿度等环境因素的影响。此外，由于它们测量的是一段时间内的平均浓度，因此可能无法捕捉到在高峰交通时间或工业活动期间发生的短期污染激增。因此，将扩散管与其他监测方法结合使用，以获得全面的空气质量理解是至关重要的。总之，扩散管是监测空气质量的宝贵工具，提供了一种经济有效且简单的方法来测量大气中污染物浓度。随着城市化的不断加剧和空气污染问题的持续存在，扩散管在环境监测中的作用可能会进一步增长。通过将这一技术与其他方法结合使用，我们可以更好地理解和应对空气污染带来的挑战，最终实现更健康和可持续的社区。