The other reason why the possibility of gold as a potential catalyst has been overlooked is its extremely high value, which has led scientists to deduce that the cost of using gold as a catalyst would be unaffordable. Coupled with other factors, over the past few years, an overall chain of gold substances has resulted in a range of gold substances that are even much cheaper than other metals (such as platinum, germanium, and puts) that have been used in large-scale technology catalysis. Unlike the latter, thousands of tons of gold can be recovered from stoichiometry applications, and the mine also produces thousands of tons of gold per year. Therefore, the price of gold is relatively more stable than that of platinum, which is very advantageous if gold is applied to industrial channels. In addition, we need to remember that the price of catalysts is generally determined by ligands, not metals. Gold catalyst is also a nice choice in the field of catalyst, it has the four mean reasons.

In order to better study the application principle, characteristics and requirements of airborne lidar measurement technology, the problems that need to be paid attention to in the application of airborne lidar system need to be compared and analyzed with the traditional aerial photogrammetry technology, and countermeasures need to be formulated after its advantages are defined. Clear objectives and operation norms, better applied in the highway survey design, improve the level and quality of the survey, grasp the specific situation of the highway, easy to find problems in time, improve the problem, which can provide guidance and basis for the smooth progress of highway engineering projects in the later period. To this end, this paper mainly discusses the application research of airborne Lidar measurement technology in highway survey and design, analyzes the characteristics and key problems of airborne Lidar measurement technology, and then puts forward the comprehensive application.

This study used data from the National Meteorological Information Center of China, National Centers for Environmental Prediction of the United States, and others in late January 2022. The main analysis is of the circulation situation and precipitation profile for late January 2022. The main influencing factors are: 1) cold air brought by a high-altitude trough to the south. 2) The prolonged convergence of cold and warm air currents. 3) Warm and humid airflow climbing at lower levels. The result led to widespread snow and rain and freezing weather in east-central China from 25th to 29th January 2022. Blizzards to heavy snowfall were reported in Henan, Hubei, and Hunan.

A good ecological environment and its protection and governance work are the foundation for the sustainable development and progress of the Chinese nation, a priority area for improving people's livelihood and well-being, and a necessary condition for building a beautiful China. As an integral part of the ecological environment, the protection and governance of the atmospheric environment has a long way to go. Based on the investigation and review of the progress of atmospheric environmental protection and governance in China, this paper makes corresponding reflections and prospects for the current situation of atmospheric environmental protection.

According to the actual situation in the current society, the air pollution of environmental engineering has become more and more serious, which has brought great harm to the environment and organisms. In order to improve the air pollution problem, it is necessary to formulate reasonable control measures according to the actual situation, increase the pollution control, deal with the atmospheric environment. This paper first expounds the types and causes of air pollution. Finally, the characteristics of air pollution are outlined, and the countermeasures for air pollution control are proposed, such as implementing the concept of green economic development and ensuring the level of greening in urban areas, hoping to provide valuable reference for those who study the same problem.