1.
Field measurement and research of coal dust pollution status in cutting coal of the fully mechanized mining face
综采工作面割煤时煤尘污染状况的现场实测研究
2.
Ventilation and Dust Control of Main Room in Power Plant;
燃煤电站主厂房通风与粉尘污染控制
3.
The status and developments of environmental governances about Wangjiazhai coal mine
汪家寨煤矿污染粉尘治理现状及其建议
4.
Dust contamination of the coal handling system is a problem that power plant professional environment pay attention to.
输煤系统的粉尘污染问题是燃煤电厂职业环境比较关注的焦点。
5.
Prevention Technique on Seeping and Transferring of Ash Water and Dust Polluting of the Fly-ash Storing Site;
粉煤灰贮放场灰水污染物运移及扬尘防治技术研究
6.
health effects of smoke-dust pollution
烟尘污染对健康的影响
7.
soiled with dirt or soot.
被污垢或者煤烟污染。
8.
Dust-collecting devices adopted, absorbing dust, preventing air pollution.
配置集尘装置，吸收粉尘，防止空气污染。
9.
"Clean:Free from dirt, stain, or impurities; unsoiled."
干净的:无灰尘、污迹或杂质的;未污染的.
10.
A conclusion is drawn that dust pollution of coal warehouse bottom is caused by haulage wind flow, inducd wind flow and impact wave wind flow.
研究发现，毛煤仓仓下粉尘污染主要是由皮带牵引风流、落料诱导风流和空气冲击波风流造成的。
11.
* Control technologies for coal-firing induced pollution
燃煤污染控制技术。
12.
Coal-worker's Pnuemoconiosis and Pulmonary Fungal Infection:Analysis of 41 Cases
煤工尘肺合并肺部真菌感染41例分析
13.
Chapter V Prevention and Control of Pollution by Waste Gas, Dust and Fetor
第五章 防治废气、尘和恶臭污染
14.
the act of contaminating with dust particles.
因小颗粒或浮尘而受污染的行为。
15.
We must color=# cc0066> abate the smoke nuisance in our big cities.
我们必须消除大城市里烟尘污染。
16.
Clothing can also become contaminated with dust, feathers, and excrement.
衣着则会受到微尘、羽毛和粪便的污染。
17.
They also cannot pollute the air with clouds of smoke and dirt.
它们也不能用成团的烟尘污染空气。
18.
A Few Problems about Air Pollution Caused by Dust Dispersion
大气粉尘污染扩散研究中的一些问题