Tell me how the article introduces the structural features of Marco Polo Bridge

1. Use an analogy.

For example, "The bridge opening of the stone arch bridge is arc-shaped, like a rainbow." "The bridge opening is not an ordinary semicircle, but like a bow..." Use "rainbow" and "bow" as comparisons to highlight It has the basic characteristics of the stone arch bridge form and is full of image.

2. Give examples.

In order to illustrate the characteristics of Chinese stone arch bridges, the author cited two examples: Zhaozhou Bridge and Marco Polo Bridge. Zhaozhou Bridge is a representative of single-arch stone bridges, and Marco Polo Bridge is a representative of double-arch stone bridges. Both bridges are world-famous. Their examples are representative, typical and convincing.

3. Classification.

For example, Zhaozhou Bridge: "The characteristics of this bridge are: (1) There is only one big arch in the whole bridge... (2) There are two small arches on each shoulder of the big arch... ( 3) The large arch is composed of 28 arch circles... (4) The structure of the whole bridge is well-proportioned..." The classification explanation is clear and organized, giving readers a complete and clear impression of the structural characteristics of Zhaozhou Bridge.

4. Quote.

For example, quoting the "Traveler's Bridge" in "Shui Jing Zhu" shows that my country's stone arch bridges have a long history; quoting Zhang Jiazhen's words from the Tang Dynasty, "It is strangely made, and people don't know why", which shows that the design and construction of Zhaozhou Bridge It is exquisite; it quotes the praise of Zhang NFEAF of the Tang Dynasty, "The clouds emerge in the early moon, and the rainbow drinks from the stream", which shows that the Zhaozhou Bridge has a beautiful form, etc. These quotes enhance the persuasiveness and appeal of the article.