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1、of 16 session brought to adhere to people-oriented, all-round, coordinated and sustainable scientific development view, promoting economic and social and human development. The core of the scientific Outlook on development is people-oriented. Implement the scientific concept of development and first
2、 implementation of people-oriented requirements. Office of the Party Committee of this years work, we have to firmly establish the idea of people-oriented philosophy, richness of understanding the people-oriented, seriously implement people-oriented requirements correctly grasping the practice of pe
3、ople-oriented, through people-oriented three services working process, pushing the city Party Committee Office work to a new level. Investee (b) investee by people-oriented, in the final analysis is centred, human premise, a human-powered, human purpose. People-oriented thinking long. As early as th
4、e spring and Autumn period of more than 2000 years ago, Qi Guan Zhong: overlord of the beginning, and people-oriented. Principle of the solid. For thousands of years, traditional Chinese political culture there is a wide variety of people-oriented thought. Pan Gengs people to the Duke of Zhous prote
5、ct and then to Confucius man, from his your KingLight to the idea of Grand boat water and then to advocate since the Han and Tang dynasties nation , these useful idea is, is the country of the people, political sources. The rulers of people, the San Zhi bei yan; the rulers of thin people, then died
6、suddenly. The West ever since the Renaissance, it is because of the rise of humanism, really started to self awareness, self discovery and self-reflection. Predecessors in criticism of Marx and Engels thought on the basis of the outcome of, according to the great discovery of historical materialism,
7、 reveals the true nature of human existence, the ideology was essential and strongly suggests, as provided. In 1894, the Engels from Marxs writings, singled out his favorite passage for the new century weekly solemn inscriptions: there, the free development of each is the free development of all peo
8、ple. In modern society, people-oriented thinking more and more attention. People generally regard it as a kind of economic and social development, a principle, a requirement, as a need to maintain the interest of the people of, a pursuit, a purpose. This idea was praised, with the profound connotati
9、on and practical significance. Investee 1. people answering epistemological questions and answered the questions of methodology. People contains a profound philosophical, epistemological and methodological significance of science. Known as epistemology, refers to the theories on the relationship bet
10、ween knowledge and practice. In the view of Marx and Engels, man is mans world, is the State, society, and history writers and characters. In other words, the world is one world, society is human society. We know the society, starting from the people to observe; we know the practice, from the people
11、 to study; we knew Office work, from the people who set out to explore. Ignoring this, will she seek目录摘要2第一章引言3第二章改装天然气汽车技术的发展历程42.1改装天然气汽车的发展背景42.2改装天然气汽车的发展历程4第三章改装天然气对汽车发动机的影响与分析63.1改装天然气对汽车发动机的影响63.2改装天然气对汽车发动机影响的分析6第四章改装天然气对汽车使用性能的影响与分析84.1改装天然气后对汽车动力性造成影响与分析84.2改装天然气后对汽车经济性的影响与分析104.3改装天然气后对汽车
12、排放造成的影响与分析10结论12致谢13参考文献14摘 要汽车保有量的高速增长带来了环境污染和能源短缺。为此，世界各国广泛开展汽车替代燃料的研发工作。汽车改装天然气意义重大，但经过简单改装的汽油/CNG两用燃料发动机的使用性能存在一些问题，包括动力性能大幅下降，排放性能指标达不到预期目标等问题，虽经燃供装置与发动机的优化匹配以及一系列调整，也只能使发动机动力性能得到部分恢复和排放性得到一定程度的改善。但也对汽车的使用造成一定的影响。本文通过对汽车改装天然气的一系列的认知，从对环保、能源、发动机的影响着手，各方面的进行分析，为以后改进汽车改装天然气技术打下一定的基础。关键词：改装 天然气汽车 使
13、用性能 影响与分析should be dealt with by the personnel Department of the company. (3) personal injury accident occurs, the direct punishment 500-1000, who is directly responsible for the accident responsibility, give notice of criticism and 50-100 economic sanctions against them. (4) to conceal the accident
14、, reported without undue delay or false, to inform the administrative leadership of the criticism, resulting in serious consequences, the pursuit of leadership, along with 500-1000 punishment. (5) significant near miss should be attempted as the case of responsible for the accident and construction
15、team injuries accident penalty provisions, mutatis mutandis. Eight, should perform in the construction standards and specifications, serial number a 1 GB3323-2005 steel fusion welded butt joints, welding engineering-Ray lighting and quality rating of 2 GB11345-89 steel welds manual methods of ultras
16、onic inspection and testing results for grade 3 GB50236-2002 industrial pipe welding engineering code for construction and acceptance of field equipment 4 HGJ222-92 technical specification for welding of aluminium and its alloys 5 low temperature steel welding procedure 6 SH3525-2004 petrochemical JB/ T4708-2000 of welding procedure qualification for steel pressure vessels 7 JB/4709-2000 8 JB4730-200
