1, gear has a unified meaning, and the key to a machine running freely is gear. Each gear is concave and convex, and can complement each other when running, thus generating power. If every gear is as smooth as jade and perfect, the machine can't run because the gears are not inclusive.

2. Gear symbolizes unity and cooperation, which means teamwork.

3. Tightly meshed gears and seamless artistic design are exactly what we need to learn in our life.