1.
The Generation of Normal Temperature Plasma-Flow and Its Effect on Air Full-Purification of the Library
室温等离子流的产生及其对图书馆空气全净化
2.
Oil-Free Lubrication & Air Purification
无油润滑及空气净化
3.
Remove air cleaner housing.
拆去空气净化器外壳。
4.
air cleaner and silencer
空气净化器及消声器
5.
Fresh air cleans the blood.
新鲜空气能净化血液。
6.
They clean the air and keep water from running away.
它们净化空气，保持水土。
7.
Trees help clean the air.
树木有助于净化空气。
8.
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
9.
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
10.
Study on Application of Air-Air Total Heat Exchangers in a Hospital Air-Conditioning System
全热空气热交换器在医院净化空调系统中的应用研究
11.
Safety of household and similar electrical appliances Particular requirements for air-cleaning appliances
家用和类似用途电器的安全 空气净化器的特殊要求
12.
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
13.
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
14.
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
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.
Trees also improve the air! And they make the park look beautiful!
树还可以净化空气！美化公园！
17.
Study of Indoor Air Cleaning Devices under the Light Irradiation;
TiO_2/ACF光催化的室内空气净化装置研究
18.
A Study on the Regeneration and Utilization of Lithium Hydroxide Used as Gas Purificant;
空气净化用氢氧化锂的再生利用研究