air change rate
基础释义：空气交换率（通常用于描述室内环境或生态系统中的空气或气体交换速度）
发音：/?e?r ?t?e?n?r ?ra?t/
英语范文：
Title: The Importance of Air Change Rate in Indoor Environment
Air change rate is an important factor in maintaining a healthy indoor environment. It determines how quickly air pollutants are removed from the space and how fresh air is replenished. In a well-designed indoor environment, air change rate should be carefully considered to ensure that the air quality is maintained at an optimal level.
For example, in a closed environment with high air change rate, air purifiers and ventilation systems can be used to further improve air quality. On the other hand, in a low air change rate environment, it may be necessary to reduce indoor activities and open windows for sufficient ventilation to prevent build-up of harmful gases and pollutants.
Therefore, understanding the air change rate of a space is crucial for ensuring a healthy and comfortable indoor environment.
注：以上范文仅供参考，实际写作中请根据具体情况进行修改。
英语作文音标和基础释义：
Air change rate /?e?r ?t?e?n?r ?ra?t/ is an important factor in maintaining a healthy indoor environment. It [?t] determines [d??t??n] how quickly [kwi?te?tli] air pollutants are removed from the space and how fresh air is replenished.
In a well-designed indoor environment, we should carefully consider [k??sa?l?bly] air change rate to ensure that the air quality is maintained at an optimal level.
For example, in a closed environment with high air change rate, we can use air purifiers [?p??r??la?z] and ventilation systems [?ve?nte??n ?sa?zm?nts] to further improve air quality. On the other hand, in a low air change rate environment, we may need to reduce indoor activities and open windows for sufficient ventilation to prevent build-up of harmful gases and pollutants.
Therefore, /d??r??kw?ntli/ understanding [??nd??ɡr?nt?d] the air change rate of a space is crucial for ensuring a healthy and comfortable indoor environment.
注：音标中的/?e?r /、/d??t??n/、/kwi?te?tli/、/k??sa?l?bly/、/d??r??kw?ntli/等都是音标符号，用于表示发音。基础释义部分是对上述内容的翻译和解释。
air change rate
释义：空气交换率
发音：/?e?r ?t?e?n ?r??t/
英语范文：
标题：Air Change Rate and Its Impact on Building Climate
Air change rate (ACR) is an important factor in determining the indoor environment of a building. It refers to the frequency with which fresh air enters a space and replaces the air that has been used up or polluted. A high ACR ensures a comfortable indoor climate with sufficient oxygen levels and reduces the build-up of harmful gases and odors.
However, a too high ACR can have negative impacts on building occupants. Excessive air exchange can lead to the loss of moisture in the air, which can cause discomfort and even illness in some people. Additionally, if the air quality is poor, too much air exchange can exacerbate the problem.
Therefore, it is important to strike a balance between ensuring sufficient ACR and minimizing its negative impacts. Building designers and managers should consider factors such as building location, climate, building materials, and occupant needs when determining an appropriate ACR.
In conclusion, air change rate is an essential factor in maintaining a comfortable indoor environment. It should be carefully considered when designing and operating buildings to ensure that occupants are not subjected to adverse effects.
air change rate
Air change rate refers to the frequency of air exchange per hour in a room or building. It is an important parameter that determines the indoor air quality and energy efficiency of a building. A high air change rate means that the air in a room is replaced more frequently, leading to poor indoor air quality and potential health risks. On the other hand, a low air change rate may result in poor ventilation and increased carbon dioxide levels, which can also have an adverse impact on human health.
To improve indoor air quality and reduce health risks, it is recommended to adopt appropriate ventilation systems that can maintain an appropriate air change rate. These systems typically include mechanical ventilation and natural ventilation methods. Mechanical ventilation can be achieved through the use of air conditioning systems or exhaust fans, while natural ventilation can be achieved through opening windows or using operable windows.
In addition, reducing sources of indoor pollution, such as smoking and using chemical cleaning products, can also help maintain a healthy indoor environment. Regular cleaning and maintenance of building systems, such as heating, ventilation, and air conditioning (HVAC) systems, can also help reduce indoor pollutants and maintain good indoor air quality.
In terms of energy efficiency, maintaining an appropriate air change rate is crucial for reducing energy consumption and carbon emissions. By ensuring that the air change rate is appropriate for the building's usage and occupancy, building owners can achieve better energy efficiency and reduce their carbon footprint.
In conclusion, maintaining an appropriate air change rate is crucial for ensuring good indoor air quality and reducing health risks, while also contributing to energy efficiency and reducing carbon emissions. Therefore, it is essential to adopt appropriate ventilation systems and reduce sources of indoor pollution to maintain a healthy and energy-efficient building environment.
