Question

英语作文 近来,我国北方很多城市都遭受了雾霾天气,这给人们的生活带来诸多不

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Answer 1

Our environment has been seriously damaged, take the recent haze around it.
Since January 28th, the Middle East China appeared in a wide range of fog and haze, thehaze area of over 1000000 square kilometers. The Central Meteorological Station in the fog warning, also issued a blue warning signal.
When the relative humidity is little haze, fog and the relative humidity is saturated (such as the existence of a large number of condensation nuclei, the relative humidity is not up to 100%may be saturated).
Worsening haze weather graphic symbols and average relative humidity less than 80% atmospheric haze blurred vision caused by haze caused the deterioration of visibility, relative humidity is greater than 90% atmospheric haze blurred vision caused by the deterioration ofvisibility fog, relative humidity between 80-90% of atmospheric haze blurred vision caused visibility mixture by haze and fog, but its main ingredient is the haze. Haze thickness is relatively thick, up to 1-3 km. The haze and fog, cloud is not the same, there is no obvious boundary between the clear zone, haze particles distributed uniformly, and the dust particle size is relatively small, from 0.001 microns to 10 microns, the average diameter of about 1-2microns, the naked eye can not see the particles floating in the air. The dust, sulfuric acid,nitric acid and other particles in the haze, the scattering light with longer wavelength is much,so the haze appears yellow or orange gray.
The formation of haze has three elements: one is the physical origin of dust particles. China isthe world's largest loess plateau region of the plain, the soil texture is most likely to generateparticles of dust particles. Two is due to a difference in the dust. For example, the middle of the road and the street curb garden soil splashing rain or if the mud flow into the road, an hour after being dry, the wheel rotation will cause a lot of dust, even if these particles fall back to the ground, but also because of the car passing by, once again thrown into the city. The three is the dust source and movement difference of concentration in a certain space range,the particle and water molecules gather into a haze of tuberculosis. At present, in our countrythe Loess Plateau area of more than 350 city level, three capital pretty much haze structure.
About the fog and haze composition after you Shi Bushi aware? Please take your idea and action.

我们身边的环境已经受到了严重的破坏，就拿最近各地的雾霾天气来说。
1月28日起,中国中东部地区出现了大范围的雾霾天气,全国灰霾面积超100万平方公里。中央气象台在大雾预警之外,也同时发布了霾蓝色预警信号
在于发生霾时相对湿度不大，而雾中的相对湿度是饱和的(如有大量凝结核存在时，相对湿度不一定达到100%就可能出现饱和)。
雾霾天气图形符号一般相对湿度小于80%时的大气混浊视野模糊导致的能见度恶化是霾造成的，相对湿度大于90%时的大气混浊视野模糊导致的能见度恶化是雾造成的，相对湿度介于80-90%之间时的大气混浊视野模糊导致的能见度恶化是霾和雾的混合物共同造成的，但其主要成分是霾。霾的厚度比较厚，可达1-3公里左右。霾与雾、云不一样，与晴空区之间没有明显的边界，霾粒子的分布比较均匀，而且灰霾粒子的尺度比较小，从0.001微米到10微米，平均直径大约在1-2微米左右，肉眼看不到空中飘浮的颗粒物。由于灰尘、硫酸、硝酸等粒子组成的霾，其散射波长较长的光比较多，因而霾看起来呈黄色或橙灰色。
雾霾形成有三个要素：一是生成颗粒性扬尘的物理基源。我国有世界上最大的黄土平高原地区，其土壤质地最易生成颗粒性扬尘微粒。二是运动差造成扬尘。例如，道路中间花圃和街道马路牙子的泥土下雨或泼水后若有泥浆流到路上，一小时干涸后，被车轮一旋就会造成大量扬尘，即使这些颗粒性物质落回地面，也会因汽车不断驶过，被再次甩到城市上空。三是扬尘基源和运动差过程集聚在一定空间范围内，颗粒最终与水分子结核集聚成霾。目前来看，在我国黄土平高原地区350多座城市中，雾霾构造三要素存量相当丰裕。
关于雾霾天气的作文看完了你是不是有所感悟呢？那就赶紧将你的想法付出行动吧。
普卫欣美国进口的可以防雾霾天 猫有。