What are the characteristics of the Great Wall, and what are the characteristics of the Great Wall?

<>1. Long history: The Great Wall of Qin was built in the third century BC and has a long history of more than 2,300 years. If it can be traced back to the Great Wall of Chu and Qi during the Western Zhou Dynasty and the Spring and Autumn Period and the Warring States Period, the Great Wall of China has a history of at least 2,700 years.

Even the Great Wall built in the Ming Dynasty has been more than 600 years. Such an ancient and great building, which can be preserved to this day, is very rare, precious and rare in the world.

2. Amazing length: From the Spring and Autumn Period and the Warring States Period to the Ming Dynasty, the Great Wall has been repaired and increased to varying degrees in successive dynasties. The Great Wall spreads across 16 provinces, municipalities and autonomous regions in the Yellow River and Yangtze River basins, running both east-west and north-south, with a total length of 108,000 miles (54,000 kilometers).

Among them, there are more than 10,000 miles of the Great Wall of Qin, the Great Wall of Han and the Great Wall of Ming. Because it is more than 10,000 miles, it is called the Great Wall.

3. The project is huge: According to the rough calculation of scientists, if the earth, bricks and stones of the Great Wall of the Ming Dynasty are used to build a city wall 1 meter wide and 5 meters high, then it can circle the earth; If it were used to pave a road five meters thick and 5 meters wide, it would circle the earth three times.

4. Superb construction: the place where the Great Wall passes, or high mountains and deep valleys, or rivers, seas and lakes, or desert grasslands, etc., the geological terrain is extremely complex and steep, and the construction operation is particularly difficult. In order to build the Great Wall, it is necessary to understand and apply a variety of scientific and technological knowledge such as mathematics, mechanics, geometry, surveying, geology, architecture, organization, and transportation.

The fact that the working people of our country in ancient times were able to build this huge and complicated project and stand tall in the world for thousands of years shows that the infinite wisdom and great creative spirit of the Chinese nation are all convincing and eulogisative.

The common birds in the north of <> are the black-naped oriole, the longevity bird, the three treasures, the black curly-tailed, and the peacebird.

1. Black-naped oriole: It is a medium-sized finch species. It is similar in size to the golden oriole and has a body length of 23-27 cm.

The whole body is golden yellow, and the wings and tail are black. The headrest has a broad black band that extends to the sides and connects with the black eye lines, forming a black band around the top of the head, which is very striking on the golden head.

2. Shoubandbird: There are 17 species in total. The male has two color shapes, with a body length of about 30 cm with tail feathers, a dark blue glow on the head, neck and crest, and white on the rest of the body. **The two tail feathers are four or five times as long as the body, resembling ribbons, hence the name.

3. Three Treasure Birds: Birds of the Three Treasure Birds of the Buddha and Dharma Sangha family are a kind of small and medium-sized climbing birds under the Three Treasure Birds of the Buddha and Dharma Sangha order, with a total of 10 subspecies, a body length of 26-29 cm and a weight of 107-194 grams. The whole body is blue-green, the head and wings are dark, black-brown, and the base of the primary flight feathers has a pale blue spot, which is very obvious when flying.

4. Black curly tail: about 30 cm in length, black throughout, with a blue luster on the upper body, chest and tail feathers. The tail length is deeply concave, and the outermost pair of tail feathers curl outward upward.

5. Peacebird: body length 18 cm, wingspan 34-35 cm, weight 40-64 grams, lifespan 13 years. It is a small songbird, the whole body is basically grape gray-brown, the head color is dark chestnut brown, there is a slender tufted feather crown on the top of the head, a black eye pattern from the base of the mouth through the eyes to the back of the occipital, located on both sides of the crest, in the chestnut brown head is extremely eye-catching.

Chin and throat black.

1. The use of the Great Wall is a long history from its inception to maturity. The construction, maintenance and military use of the Great Wall accompanied the Spring and Autumn Period and the Warring States Period to the Qing Dynasty for more than 2,000 years, and its maintenance and other uses have continued to modern times. According to historical records, the state of Chu is China2, the length is amazingFrom the Spring and Autumn Period to the Ming Dynasty, the Great Wall has been maintained and built to varying degrees.

The Great Wall is located in the Yellow River, the Yangtze River basin of 16 provinces, municipalities and autonomous regions. It has east-west and north-south orientations, with a total length of 108,000 miles (54,000 km). Among them, thousands of miles away, there are the Great Wall of Qin, the Great Wall of Han and the Great Wall of Ming.

3. The construction area is wideThe construction area of the Great Wall is wide. The Great Wall was maintained and expanded over a long period of time and spread over much of northern China. Neighboring countries, such as the current Korea, Outer Mongolia and other countries, also built the Great Wall when they belonged to the territory of ancient China or the place of bondage, and there are still ruins and relics of the Great Wall built by ancient Chinese dynasties.

4. The land on which the Great Wall is built is exquisitely constructed, or the mountains and deep valleys, rivers and lakes, desert grasslands, etc., are extremely complex and dangerous, and the construction work is particularly difficult. To build the Great Wall, it is necessary to understand and apply various scientific and technical knowledge, such as mathematics, mechanics, geometry, surveying, geology, construction, organization, and transportation. The meaning of the Great Wall:

1. From the Qin and Han dynasties to the Ming and Qing dynasties, many passes along the Great Wall became places or centers for ethnic trading in the two major economic and cultural systems of agriculture and animal husbandry, and some gradually developed into important towns along the Great Wall. The Great Wall not only ensures the normal development of agricultural economy, culture and animal husbandry economy and culture, but also provides a place and convenience for the exchange and complementarity between the two. It also plays an important role in mediating the two economies and enabling the agricultural and animal husbandry economies to develop in the direction of mutual cooperation between the main and auxiliary industries. 2. In terms of culture, the Great Wall has also played an important role in the formation and development of the pluralistic and integrated pattern of the Chinese nation.

The construction and defense of the Great Wall, as well as the battles in the Great Wall area, led to the extensive integration of the Han and more than a dozen ethnic minorities in ancient China. 3. The Great Wall is the greatest military defense project in the ancient history of the world, it is not a simple isolated first-line city wall, but from point to line, from line to surface, connecting the passes, military forts, gates and important military towns along the Great Wall into a tight network to form a complete defense system. 4. In the cultural belt of the Great Wall area, there are many places of interest and historic sites, such as the murals and sculptures of Dunhuang, Yungang Grottoes, Maijishan and Wanfotang Grottoes; Juyongguan Yuntai in the Yuan Dynasty, Lugou Bridge in the Jin Dynasty, and the ruins and unearthed cultural relics of Jinzhongdu and Yuan Dadu all reflect the characteristics of cultural exchanges, and also record the glory of the Chinese culture in history.

The main feature of the Great Wall is that it is long and winding for more than 13,000 miles, and then the weight of each stone is more than a ton, and there is no machinery at that time, it is all manual and old.

The characteristics of the Great Wall are steep, majestic, peculiar, long construction time, and large amount of work, in addition to the characteristics of the Great Wall with long construction length, defensive function, and ornamental function.

The Great Wall is characterized by the 108,000-mile-long Great Wall, which spreads throughout the country. The Great Wall was built by ancient people with hard work. Moreover, there are many military facilities in the Great Wall, such as those that fought in the past, artillery towers and so on. These are all characteristics of him.

1.The Great Wall of China, the biggest feature is that it is long, the distance is long, curved, and the height is quite high in general, and it is relatively strong.

The characteristics of the Great Wall are ancient, remote, strong, and cultural.

The most important feature of a building with history and culture like this should be that it has historical and historical research value.

1. Xiong: The Great Wall is the main part of the city wall, with an average height of meters, and some sections are as high as 14 meters, and the wall is the main part of the defense against the enemy.

2. Qi: The Great Wall is not just a single city wall, but a complete defense engineering system composed of a variety of fortifications such as city walls, enemy towers, gates, dungeons, camps, guards, and beacons in the town city, which are commanded and controlled by military command systems at all levels.

The characteristics of the Great Wall, he has a very long historical significance, and in that era it was purely hand-cast, the Great Wall. He showed the spirit of hard work of the people at that time, the spirit of perseverance, and the spirit of not fearing difficulties, and was one of the eight wonders of the world.

1. Long history The Great Wall of Qin was built in the 3rd century BC and has a long history of more than 2,300 years. If you go back to the Great Wall of the Western weekend and the Spring and Autumn Period and the Warring States Period, the Great Wall of China is at least 2,700 years old. Even the Great Wall built in the Ming Dynasty is more than 600 years old.

Such an ancient great building is still well preserved to this day, which is very rare, precious and rare in the world.

2. Amazing length From the Spring and Autumn Period to the Ming Dynasty, the Great Wall has been maintained and built to varying degrees. The Great Wall is located in the Yellow River, the Yangtze River basin of 16 provinces, municipalities and autonomous regions. It has east-west and north-south orientations, with a total length of 108,000 miles (54,000 km).

Among them, thousands of miles away, there are the Great Wall of Qin, the Great Wall of Han and the Great Wall of Ming.

3. The project is huge According to the rough calculations of scientists, if a wall of 1 meter wide and 5 meters high is built with the earth, bricks and stones of the Great Wall of the Ming Dynasty, it can go around the earth; If it is used for laying meters of thickness and width of 5 meters. This path can circle the earth up to three times.

Features of the Great Wall:

1. The defense engineering system of the Great Wall.

The Great Wall, which stretches for thousands of miles, is not just a single city wall, but a complete defense engineering system composed of various fortifications such as city walls, enemy towers, gates, dungeons, camps, guards, and beacon towers in the town city. This defense engineering system is commanded and controlled by military command systems at all levels.

2. The defense engineering construction of the Great Wall.

It has accumulated rich experience in the construction process of more than 2,000 years. First of all, in terms of layout, when Qin Shi Huang built the Great Wall, he summed up the experience of "using danger to control the blockage due to the terrain". For more than 2,000 years, this principle has been followed and has become an important basis for military deployment.

In terms of building materials and building structures, many structural methods have been created based on the principle of "local materials and materials".

3. The walls of the Great Wall.

It is the main part of this defense project. It is built in the high mountains or plains and dangerous places, and is built according to the needs of the terrain and defense functions, where the plains or key passes are built very tall and strong, and in the high mountain places are relatively low and narrow, so as to save manpower and costs, and even some of the most steep places can not be built in the places that adopt the methods of "mountain danger walls" and "splitting mountain walls".

It has a long history, amazing length, huge engineering and exquisite construction.

The Great Wall of Qin was built in the 3rd century BC and has a long history, with a history of more than 2,300 years.

The history is very long, it is a great building in the Spring and Autumn Period and the Warring States Period, and such a Great Wall is very rare.

Paradise all over the world has a long history with the third century BC

The Great Wall was built in the 3rd century BC.