What's the number of car washes?

The number of car washes should be that the car wash index is misspelled. The car wash index refers to whether there is rain and snow in the past 12 hours and the next 48 hours, whether there is snow and muddy water on the road, and whether there is dusty weather. , and provide advice for car lovers on whether it is suitable for car washing. The car wash index * * * is divided into 4 levels, and the higher the level, the less suitable it is for car washing.

Car wash index is divided into four grades:

Grades 1 and 1: appropriate.

Grade 2 and 2: more suitable.

Grade 3, 3: Not suitable.

Level 4 and 4: unwell.