critical element

On Non-party Personage s Main Historical Contribution;

论无党派人士的主要历史贡献

And it pays more attention to the cause systems of the main air pollutant and the harmness to the human health.

通过闻名世界的大气污染公害事件 ,说明大气对人类的重要性 ,并着重阐述主要大气污染物的发生机制及对人体健康的危

Major Process and Development Tendency for Urban Wastewater Treatment of Our Country;

我国城市污水处理的主要工艺及发展趋势

Analysis of key odorant compounds in brandy by sensory evaluation;

白兰地主要香气物质感官分析

The paper introduces the current situation of the development and the use of domestic and international taphole clay,and analyzes the main factors that influence the quality of tap-hole clay,putting forward the method for improving the quality of tap-hole clay and its developmental trend.

介绍了国内外炮泥的发展和使用现状,分析了影响炮泥质量的主要因素,提出提高炮泥质量的方法及炮泥的发展方向。

On the basis of a lot of literatures,the main factors which affect the skid resistance of asphalt pavement are analysed,the measures of improving the shid-proof character of asphalt pavement are induced.

根据大量的文献资料，分析、讨论了影响沥青类路面抗滑性能的主要因素，归纳了提高路面抗滑能力的措施。

The results showed that the rising in price of corn is the main factor which influence on the production cost of formula feed.

结果表明：玉米涨价是影响配合饲料生产成本的主要因素。