空气质量的英文：
air quality

参考例句：

Impact on the quality of the water and the air
对水质和空气质量的影响

On the other hand, the influence on air quality is relevant only in the immediate vicinity of the emission source
另一方面，对空气质量的影响只限于排放源经过的邻近地区。

These effects appeared to be reversible when air quality improved
当空气质量改善时，这种效应是可以消除的。

It is very important to prevent air-cross infection and improve air quality in an ICU.
特别监护病房内防止空气交叉感染，改善空气质量是非常重要的。

Aircraft emissions also influence acidification phenomena and local air quality
飞机排放物也会导致酸化现象的出现并影响区域空气质量。

Statistics suggest that the city’s daily air pollution index has improved somewhat compared with 2007.
统计数据表明，北京的每日空气质量指数相比于2007年有些许改善。

Placing plants in poorly ventilated rooms has long been known to improve air quality and humidity
人们早就知道将植物置于通风性差的房间里能改善空气质量和湿度。

Every day thousands of trucks run empty, pushing up the world's fuel prices and degrading its air.
每天都有成千上万的货车放空车，这种状况推高了世界油价并降低了空气质量。

air是什么意思：
n. 空气；大气；天空；空间；微风；样子；神态；气氛
v. 晾；通风；广播

There was not a breath in the air.
一丝风也没有。

a nip in the air
空气中有一种刺肤的寒冷

To fish in the air
海底捞月

Clean the air intakes regularly for sufficient air flow
定期清理进风口以保证有足够的空气流量

The switch hovered in the air.
鞭子在空中摇晃。

quality是什么意思：
n.[C]
1. 性质；特性
2. 品德，品质
3. 质量；品级；优质
4. 身份，地位，作用
5.【古】高位；显赫的社会地位；(the qualities)贵族，上流人士
6.【古】成就，才艺，本领
7. 音色，音质；【语】音值
8. 色品，色泽的鲜艳性；色饱和度
9.【逻】质
10.【主英】（内容较严肃的）大报；高级刊物
11.【心】基本感官属性
adj.
1. 优良的，优质的，高记的
2.【古】上流社会的
3.【主英】（报刊）内容严肃的，高级的

ascribe a quality to or give a name that reflects a quality.
把品质归于或给出一个名字来反映品质。

Image quality indicator(IQI)/image quality indication
像质指示器

The quality of the computers are good || The quality of the computers is good
这些计算机的质量良好

IQC Incoming quality control
来料检验

To lower in quality or character;debase.
使变得低劣降低质量或品格；贬低