1. cultural wall: the cultural wall is a rectangular display surface, which can be used to display various cultures, artistic works, slogans and so on. Although the size and materials of cultural walls are different, most cultural walls are rectangular or nearly rectangular in shape.
2. party flag: party flag of China's * * * production party is a cross pattern of a golden sickle and a hammer on a red background. According to party flag, a Chinese producer, the shape of party flag is rectangular, and the length-width ratio is 3:2, that is, the length ratio is 3:2.
3. National Flag: The national flag of China is a five-star red flag, in which the big five-pointed star is golden yellow and the four small five-pointed stars are white, arranged on the right side of the big five-pointed star. According to the National Flag Law of People's Republic of China (PRC), the shape of the national flag is rectangular, and the length-width ratio is 3:2, that is, the length ratio is 3:2. Alien refers to a shape, appearance or feature that is different from the conventional or expected form. This word is used to describe unusual or strange objects, creatures or phenomena.