1·In this work, samples of airborne particulates, vent gas and smog dust during heating and non-heating seasons were collected in the urban and suburban areas of Lanzhou.
本文收集了兰州市区和郊区在取暖期和非取暖期的大气飘尘样品和汽车尾气及烟尘样品。
2·It's suffused with a thick smog that's a perpetual sulphur-yellow, and suffocated by motes of coal dust suspended in the breeze.
它弥漫着一层永远都是硫化黄色的浓雾，微风里浮着的煤尘微粒让人窒息。
3·Environmental or occupational irritants - Dust, smog, chemical fumes, second hand smoke or strong odours such as perfumes.
环境或职业的刺激-粉尘，烟雾，化学气体，二手烟或强烈的气味，如香水。
4·The microscopic dust and glass particles in volcanic ash can act like the smog particles that hover above cities and change the color of sunrises and sunsets.
火山尘埃中微小的粉尘与玻璃粒子就像飘浮在城市上空的烟雾颗粒，改变了日出日落的色彩。
5·Beijing was shrouded in severe smog for weeks early this year, with pollutants from vehicle emissions, coal - burning in neighboring regions and construction dust.
由于汽车尾气排放，周围地区煤炭的燃烧以及建筑灰尘所造成的污染物，今年早些时候北京一度几周都笼罩在严重的雾霾当中。
6·Beijing was shrouded in severe smog for weeks early this year, with pollutants from vehicle emissions, coal-burning in neighboring regions and construction dust.
由于汽车尾气排放，周围地区煤炭的燃烧以及建筑灰尘所造成的污染物，今年早些时候北京一度几周都笼罩在严重的雾霾当中。
7·Activated Carbon: air purification, effectively discharge volatile organic compounds and dust in the air, smog, smell, formaldehyde and other pollutants.
活性碳：空气净化、有效去除挥发性有机化合物和空气中的微尘、烟雾、臭味、甲醛等污染物质。
8·It's suit to be applied on sand-spray processing, grind processing, wood-working, sawing etc. For dust, smog collecting.
适用于喷砂、砂轮、 木工、研磨、切削等，吸尘粉，棉屑，木削之用。