百度试题 结果1 题目考查名词。two important___of air pollution是名词所有格,应填名词,此处意为“空气污染的两个重要成分”,名词constituent(成分、构成要素),符合句意。故选A项。 相关知识点: 试题来源: 解析 __4___ 反馈 收藏
Analysis of the Impact of Two Typical Air Pollution Events on the Air Quality of Nanjing影响南京地区的两次典型空气污染过程分析气溶胶空气污染过程后向轨迹聚类分析南京地区2009年10月下旬与11月上旬,南京及其周边地区接连经历了两次严重的空气污染过程.第一次污染过程表现为持续性灰霾天气,第二次污染过程主要受...
英语翻译Text:Type and Sources of Air PollutantsWhat Is Air Pollution?Air pollution is normally defined an air that contains one or more chemicals in high enough concentrations to harm humans,other animals,vegentation or materials.There are two ma
Air Pollution About smog: Smog can be divided into two categories, sulphurous and photochemical. The former is made up of sulphur oxides, and occurs when we burn sulphur (7) fossil fuels; the latter results from the reaction between (8) , nitrogen oxides, and volatile organic compounds. ...
In the framework of the LIFE -Environment Program, The National Institute of Meteorology and Hydrology (NIMH) carries out a demonstrative project concernin... I Sandu,Constantin Ionescu,Marian Ursache - Advances in Air Pollution Modeling for Environmental Security Nato Science Series Iv: Earth & Env...
People and the sources of air pollution are found in the same places. This means that cities with large populations have the biggest problem of dirty air. Air pollution is caused by many different things. A major source of air pollution is the gas fumes(烟) from cars. Another major source...
During the period of COVID-19, the Chinese government implemented a series of actions to prevent the spread of the virus. It is noticed that these preventive actions have generated positive effects on air pollution in Wuhan and Beijing. And, due to the differences in city functions, geographic...
AbstractThe electrical performance of insulators under the comprehensive conditions of low air pressure, pollution and icing, is an important basis for the... X Jiang,Z Xiang,Z Zhang,... - 《Cold Regions Science & Technology》 被引量: 3发表: 2014年 Comparison of Natural contamination Accumulati...
Two sets of air pollution data, namely hourly pollutant observations of B-scattering and nitrogen dioxide, from an urban airshed are used to examine the similarities and differences in fitting 2- and 3-parameter distributions where historical practice suggests there is a preference for the more ...
Calcium hydroxide (Ca(OH)) is widely used in air-pollution control devices of incinerators while sodium bicarbonate (NaHCO) is not. We conducted single-, double-, and triple-washing experiments to compare the washing characteristics of two types of fly ash. Unlike NaHCO fly ash, Ca(OH) fly...