1.
So these structures are literally smoke rings.
所以这类结构可以说就是烟尘环。
2.
Electrical apparatus for explosive dust atmosphere- Dust ignition-pro of apparatus
GB12476.1-1990爆炸性粉尘环境用防爆电气设备粉尘防爆电气设备
3.
Study on Floating Dust Air Environmental Effects in Beijing and Adjacent Areas by Remote Sensing;
北京及邻区大气浮尘环境效应的遥感研究
4.
Design and Simulation for a New Combined Automotive Air Filter Used in High Concentration Dust Circumstance;
高尘环境下车用新型组合滤清器的设计及仿真
5.
Ambient air--Determination of dustfall--Gravimetric method
GB/T15265-1994环境空气降尘的测定重量法
6.
Determination of Polycyclic Aromatic Hydrocarbons in Airborne Particulate by Gas Chromatography/Mass Spectrometry;
气/质联用测定大气飘尘之多环芳烃
7.
Environmental ecnomics ponderation over the damage of the sand and dust storm in HeBei Bashang area;
河北坝上沙尘暴危害的环境经济思考
8.
Physicochemical Characteristics and Its Environmental Effect of Urban Dust from Jinhua
金华城市灰尘的理化特征及环境影响
9.
Study on Environmental Leaching Behavior of EAF Dust Generated from Stainless Steel Plant
不锈钢电炉烟尘的环境浸出行为研究
10.
The Affect of ICP-MS Instrument from Dust in Laboratory
环境粉尘对ICP-MS仪器性能的影响
11.
Advance in Environmental Effect of Aeolian Dust and Dust Deposits;
风飏粉尘和粉尘沉积物的一些环境效应研究述评
12.
Optics and optical instruments-Environmental test methods-Dust
GB/T12085.6-1989光学和光学仪器环境试验方法砂尘
13.
She looked around her, surveying the cobwebbed, dirt-encrusted lower floor of the houes.
她环顾四周，房子的底部蛛网遍布，尘土厚积
14.
The heater clogged with dust, preventing proper circulation
加热器被尘土堵塞，以致妨碍了正常的循环。
15.
The method of environmental test for analytical instruments-Sand and dust content of the air test
GB/T11606.11-1989分析仪器环境试验方法砂尘试验
16.
Those factories are causing a lot of environmental pollution with all their noise and smoke.
那些工厂噪声大，烟尘多，造成严重的环境污染。
17.
" Environmental conditions appearing in nature of electric and electronic products--Dust,sand,salt mist"
GB/T4797.6-1995电工电子产品自然环境条件尘、沙、盐雾
18.
She looked around her, surveying the cobwebbed, dirt-encrusted lower floor of the house.
她环顾四周，房子的底层蛛网遍布，尘土厚积。