Please tell me the structure of the rocket, and it is better to have a picture! The basic components of a rocket are the propulsion system, the structure of the rocket body and the payload. Controlled rockets are also equipped with guidance and control systems, and sometimes telemetry, safe self-destruction and other additional systems can be installed on the rockets as needed. Propulsion system is the power source of rocket flight. The propulsion system of a solid rocket is a solid rocket engine. The propulsion system of liquid rocket includes engine, propellant tank, pressurization system and pipeline valve group (see aircraft propulsion system). The function of the arrow body structure is to load all the parts of the rocket and make it form a whole. Usually, the shell of solid rocket engine and the box of liquid rocket constitute a part of the arrow body structure. In addition, it also includes tail section, interstage section, instrument cabin structure and payload fairing. The structure of the arrow should have a good aerodynamic shape. On the premise of completing the same function, the smaller the weight and volume of the arrow body structure, the better. In addition to design skills and technological methods, the selection of structural types and materials is also very important to reduce the structural weight of the arrow body. Payload is an object transported by a rocket. Rockets have different uses and different payloads. The payload of a military rocket is a warhead. The payload of scientific research rocket is all kinds of research instruments. The payloads of launch vehicles are satellites, manned and unmanned spacecraft or space probes.

At present, there are dozens of launch vehicles developed by countries all over the world, which can fly in space.

Robots are sent into a predetermined space orbit to complete various tasks. Among them, the mass of giant launch vehicles is as high as

Two or three thousand tons can send hundreds of tons of load into space.

At present, most rockets used for spacecraft launch are three-stage rockets. They are mainly composed of arrow structures,

The propulsion system and guidance system are composed of three parts.

The main function of the arrow structure is to install and connect payloads (satellites, spaceships).

Instruments, equipment and power devices, as well as stored propellants, etc. To form a compact structure and appearance.

A whole with good aerodynamic characteristics. The payload is at the top of the rocket, with

The fairing mainly used to protect the payload was abandoned after the rocket flew out of the atmosphere.

Propulsion system can provide power for rocket flight, which consists of engine and propellant delivery system.

At present, the rocket engines used in launch vehicles are all chemical rocket engines. And chemical rockets

Engines can be divided into solid rockets and liquid rockets. Most launch vehicles use liquid propellant,

For example, the first and second stages can use liquid oxygen and kerosene as propellants, and the last stage can use liquid oxygen and liquid hydrogen.

As a propellant. The propulsion system can generate powerful thrust and make the launch vehicle reach the predetermined speed.

Thereby sending payloads such as satellites and spaceships into space.

The guidance system is used to measure and control the attitude, position and speed of the rocket in real time.

So as to ensure that the attitude of the rocket is stable, the rocket can fly according to a predetermined route, and the rocket engine is controlled to be turned off.

Machines, so that satellites and other spacecraft accurately into orbit. Most instruments of the guidance system are installed on the rocket.

In the instrument cabin.

1On June 29th, 964, China successfully launched the first self-developed liquid.

Rocket. The launch vehicle series is called "Long March". Now, the "Long March" series of launch vehicles not only

It can undertake the launching business of satellites at home and abroad, and also has the ability to launch other large spacecraft.

Force.

Urgent! ~ ~ Please tell me the calligraphy format! ~ ~ ~ ~ (preferably with pictures) Calligraphy can't be called format, it should be called composition.

Generally, complete calligraphy works include text, signature, seal (introduction chapter, name chapter, waist chapter, etc. )

Composition of calligraphy is a university question. Some people have written very good words, but when they are written into works, they become very poor works. Some people have participated in calligraphy competitions, and their vocabulary skills are already very deep, but because their compositions are not standardized, they have not won the prize.

There are also many profound theories and norms in the composition. The composition of each word in a real cursive script is also different, and the font size is also related to the composition. Banners, couplets, nave and banners are also different.

There are also many books about composition. Yang Zaichun's books on composition of running script and composition of running script are widely circulated in the market for reference. Tian's lectures and regular script are also more, and others can also be found in online search or bookstores.

Please tell me about the inclined plane, and it is better to have a picture. When moving at a uniform speed, F=f only applies to the horizontal plane. For the inclined plane, even if the object moves at a uniform speed, F≠f, F >；; F. Because an object is placed on an inclined plane, it may slide down automatically (under the condition of low friction). If it slides down automatically at a constant speed, the "sliding force" (the component of gravity, which will be mentioned in senior high school physics) is equal to friction. If an object moves upward along an inclined plane at a uniform speed under the action of a pulling force, the pulling force F should be equal to the original "sliding force" plus the friction force F, then at this time F ≠ F Do you understand?

Please tell me her name. It is better to have a picture. Please find someone to search for human flesh.

:dzh2.mop./

There are many people here.

Please tell me how to make a cuboid (preferably with pictures). Paper? Do you know what a cube expansion diagram looks like? Draw one by yourself according to that, design the required size, cut it out and stick it on. good

Please tell me where there is Watsons in Nanping, Fujian, and it is better to have a map. There is a Watsons on the right hand side of Nanping Grand Theatre, Binjiang Middle Road, Yanping District, Nanping City. I hope I can help you.

How to take a screenshot of Obi Island? Please elaborate! Better have a picture! You can chat with others. There is a sign of "screenshot" on it. You can take a screenshot with a click.

Please name the representative fruits of various climate types, preferably with pictures. One side is water and soil, and the other side is people. Certain animals and plants will form in certain areas. Climate is divided into tropical, subtropical, temperate and sub-cold zones, as well as humid, semi-humid, semi-arid and arid.

Tropical: Longan, Litchi, Banana, Myrtle, Castanea henryi and Olive.

Subtropical: bananas, oranges, grapes, grapefruit, sugarcane, lotus, carambola, nectarine and cherry.

Temperate zone: apple, pear, persimmon, pomegranate, winter jujube, watermelon, peach and apricot.

Sub-frigid zone and frigid zone are rare.

The main factor affecting fruit planting is heat. The influence of moisture is very small, but it is artificially modified by hydrothermal conditions. For example, tropical fruits can be planted by using waste heat near the northeast power plant.

Who can tell me that it is better to have an installation step diagram? simple

Download Dwarf DOS Toolbox at 1

2 Download the system image. gho

Boot the Dwarf DOS toolbox and enter GHOST.

Select Restore, select System Image. Gho, wait 1 min, restart, automatically install the driver, restart, log in to the system, and end.

The structure of the bogie is best illustrated ~ the bogie is mainly composed of five parts: frame, bolster spring device, axle box spring positioning device, foundation braking device and generator belt transmission device. Sorry, I don't have a map here.