What is the meaning of three steps?

One step means "one step in place", three steps are generally the three steps of the government, and "three" is nearly pronounced as "turn", which means that the hope of doing things and being an official is rising and making progress.

The gradient of indoor stairs is generally 20 -45 degrees, and the best gradient is about 30 degrees. Stairs with special functions require different slopes. For example, the gradient of a ladder is above 60 degrees, and special stairs generally walk 45 -60 degrees. The gradient of indoor and outdoor steps is 14 -27 degrees, and the gradient of ramp is usually below 15 degrees. Generally speaking, in places with large crowds, high safety standards or rich areas, the gradient of stairs should be gentle. For auxiliary stairs used by only a few people or not often, the slope can be steep, but it is best not to exceed 38 degrees.