air change rate

air change rate音标为 [ˌeə ˈtʃeɪn ˈreɪt] ，基本翻译为“空气交换率”或“空气变化率”。速记技巧可以考虑将其分解为几个部分进行记忆，如“air”可以与“everywhere”联想记忆，表示空气无处不在；“change”可以与“changeable”（多变的）联系起来，表示空气变化无常；“rate”则可以与“rate of progress”（进步的速度）一起记忆，表示空气变化的速度。

Air Change Rate（换气率）这个词的英文词源是“air”和“change”两个词。其中，“air”意为空气，“change”意为改变或变化。换气率的含义是指建筑物或房间每单位时间内交换的空气量。

换气率的英文变化形式主要有“ventilation rate”、“air exchange rate”、“airflow rate”等。其中，“ventilation”一词源于拉丁语，意为“通风”，而“rate”则表示速率或比例。因此，“ventilation rate”可以理解为通风速率或通风比例。

相关单词如“ventilate”（意为通风）、“unventilated”（意为未通风的）、“overventilation”（意为过度通风）等，这些单词都与换气率有关，表示建筑物或房间的空气交换情况。通过合理的通风设计，可以提高换气率，从而改善室内空气质量，减少疾病传播，提高人们的生活舒适度。

常用短语：

1. air exchange rate

2. air quality change rate

3. air temperature change rate

4. air pressure change rate

5. atmospheric change rate

6. oxygen change rate

7. carbon dioxide change rate

例句：

1. The air exchange rate in the room is high, indicating that the air is being replaced quickly.

2. The air quality change rate in the city has been increasing due to pollution.

3. The air temperature change rate varies with the seasons, with the temperature increasing in summer and decreasing in winter.

4. The air pressure change rate can affect the weather, with high pressure systems often bringing dry and sunny weather.

5. Atmospheric change rate is closely related to climate change, which is a serious global issue.

6. Oxygen and carbon dioxide change rates can indicate the health of the lungs and need for proper ventilation.

英文小作文：

Air Change Rate and Its Impact on Our Lives

Air change rate refers to the frequency with which indoor air is replaced, and it has a significant impact on our daily lives. A high air exchange rate indicates that the air is being replaced quickly, providing fresh air and reducing the risk of airborne pollutants. However, a low air exchange rate can lead to poor indoor air quality, which can have negative effects on our health and productivity.

In modern buildings, air conditioners and ventilation systems are commonly used to maintain a comfortable indoor environment and reduce the impact of pollutants. However, these systems can also contribute to energy waste and environmental degradation if not properly maintained and operated. Therefore, it is important to consider the air change rate when designing and operating buildings to ensure that they are energy-efficient and environmentally friendly.

In addition, air change rate can also affect our daily activities, such as working, studying, and sleeping. A high air exchange rate can provide fresh air during strenuous activities, while a low air exchange rate can lead to fatigue and discomfort. Therefore, it is essential to maintain an appropriate air change rate in our living environments to ensure that we are able to perform at our best.