1.
the benign influence of pure air.
纯净空气的有益影响。
2.
1. STRUCTURE OF THE CLEAN AIR ACT
一、《洁净空气法案》结构
3.
bridge clearance
高潮时桥梁净空高度
4.
clearway acting as buffer
用作保险道的净空道
5.
The clear vertical space beneath a ceiling or archway;clearance.
净空高度在天花板或拱下没有物体的垂直空间；净空
6.
Oil-Free Lubrication & Air Purification
无油润滑及空气净化
7.
The sky is quite blue and cloudless.
天空蔚蓝，明净无云。
8.
Fresh, pure air.
新鲜的、纯净的空气
9.
The air here is fresh and clean.
这里的空气新鲜、纯净。
10.
Remove air cleaner housing.
拆去空气净化器外壳。
11.
air cleaner and silencer
空气净化器及消声器
12.
Fresh air cleans the blood.
新鲜空气能净化血液。
13.
They clean the air and keep water from running away.
它们净化空气，保持水土。
14.
Trees help clean the air.
树木有助于净化空气。
15.
The Effect of AOS-80 Air Cleaning Devices on Air Quality of Henhouse in Winter
AOS-80空气净化机对冬季鸡舍空气的净化作用
16.
Efficacy of air-purifying system on purifying air of operating department in hospital
空气净化系统对医院手术部空气净化效果分析
17.
Preparation of Air Purification Mineral Wool Board and Research on Purifying of Formaldehyde
净化空气矿棉板的制备及其净化甲醛性能研究
18.
Status of Air Purification in Different Situations of Clean Operating Room
洁净手术室不同状态下空气净化状况测量