Which traffic prohibition signs can you read at a glance?

1. No eating and drinking sign: This sign is a circle with a drink and food sign added to indicate eating and drinking. This kind of no eating and drinking sign is common in subway cars.

2. U-turn prohibited sign: This sign adds a turning arrow and a slash inside a circle, indicating that U-turns are prohibited.

3. No Fireworks Sign: This sign with a cigarette match inside a circle indicates that fireworks are prohibited. This kind of No Fireworks sign is usually seen at gas stations.

4. No-smoking sign: A circle is the basic graphic, with a cigarette logo inside, and a slash to indicate prohibition. The entire sign constitutes a no-smoking sign.

5. National water-saving logo:

Deformed by water droplets, palms and the earth. The green circle represents the earth, symbolizing that water conservation is an important measure to protect the earth's ecology. The blank part of the logo is like a hand holding up a drop of water. The hand is a deformation of the pinyin letter JS, which means saving water. It means that water saving requires public participation. It encourages people to start with me and save every drop of water. The hand is Like a meandering river, it symbolizes the dripping water that merges into a river.

The combination of the water drop and the hand resembles the center part of the word "heart" (with two dots removed), and the water drop is located at the middle point of the word "heart", which illustrates that everyone needs to remember to save water. Take care with care and save every drop of precious water resources.