写作思路：根据题目要求，写出航天的相关内容，最后总结自己的感受。Such a moment will be recorded in the history of human spaceflight， 16:41:00 on September 27， 人类航天史将记下这样一个瞬间，2008年9月27日16时41分00秒。Astronaut Zhai Zhigang went into space from the N7 manned spacecraft wearing the Chinese developed "Feitian" extravehicular 航天员翟志刚身穿中国研制的飞天”舱外服，从七号载人飞船进入太空。This is a major leap forward in the development of China's space 这是中国空间技术发展的一个重大跨越。Zhai Zhigang's small step in space is a historic step for the Chinese 翟志刚留在太空上的一小步，是中华民族历史性的一步。China Aerospace has a team of high-quality talents who can stand at the forefront of world science and technology and have the courage to explore and 中国航天拥有一支能够站在世界科技前沿，勇于开拓创新的高素质人才队伍。In the take-off rocket， add the source of ambition and power of a nation full of 在腾飞的火箭中，加注了一个焕发青春的民族的雄心壮志和动力之源。
Based on the communication network Direct3D visual simulation engine design and implementationtheVisual Simulation (Visual Simulation) is used to realize 3 d space information visualization technology， it has a realistic Simulation effect and convenient operation method， can well satisfy the new plane avionics system design This paper designs and realizes an Direct3D based on the communication network visual simulation First， in this paper the characteristics of the visual simulation and the programming essentials Direct3D brief analysis of selection， and expounds the main reason for the Direct3D Secondly， put forward the visual simulation software， the total design project of the simulation software program and the software module partition the working process of the analysis of the various modules， explore the main functions and the relations among And then， based on the communication network of Direct3D visual simulation is the key technology of engine are analyzed and the study， introduces solutions discrete event simulation， Direct3D resource management and animation optimization and the mouse control technology， the key technology of the Finally， this essay discusses the Direct3D based on the communication network visual simulation software realization method， and in a more complex switched communication network as an example， the visual simulation， and the performance of the program was tested
In today's three dimensional transportation Civil aviation accounts for a growing share of the But when the plane flying in the atmosphere，the plane may meet 2 conditions inevitably that is high humidity and low temperature which may cause icy to affect the performance of plane and The aim of this paper is to introduce each system and principles of the aircraft anti-icy and theaircraft Among them，it introduces the function and application of the liquid anti-icy system，the heat anti-icy system，and the electrothermal anti-icy Then it introduces the anti-icy of the plane in every And then it introduces the main method of removing ice，the machanical de-icing and electro-impulse de-At last，it analyzes the B737 air inlet's anti-icy system
