The working principle of the electric toothbrush is that through the rapid rotation or vibration of the electric movement, the brush head generates high-frequency vibration, instantly decomposes the toothpaste into fine foam, and cleans the teeth deeply. At the same time, the vibration of the bristles can promote the oral cavity. Blood circulation has a massage effect on gum tissue.
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I want to know how long your scene has been.
It will feel better to add some projection to render.
More simple
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