1.
Air Clearance and Its Altitude Correction Method for the DC Side of Converter Stations
换流站直流侧空气净距及海拔修正计算方法
2.
Oil-Free Lubrication & Air Purification
无油润滑及空气净化
3.
Fresh, pure air.
新鲜的、纯净的空气
4.
The air here is fresh and clean.
这里的空气新鲜、纯净。
5.
the benign influence of pure air.
纯净空气的有益影响。
6.
Remove air cleaner housing.
拆去空气净化器外壳。
7.
air cleaner and silencer
空气净化器及消声器
8.
1. STRUCTURE OF THE CLEAN AIR ACT
一、《洁净空气法案》结构
9.
Fresh air cleans the blood.
新鲜空气能净化血液。
10.
They clean the air and keep water from running away.
它们净化空气，保持水土。
11.
Trees help clean the air.
树木有助于净化空气。
12.
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
13.
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
14.
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
15.
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
16.
The study of air purifing effects of the vehicle-inner cleaner
车用净化器对车内空气质量净化效果的研究
17.
Efficacy of TA series of air purifiers in purification of indoor air
TA系列空气净化机对室内空气净化效果的应用观察
18.
the process of exposing to air (so as to purify).
使空气通畅（以达到净化空气目的）的过程。