Nine is a Chinese character, which means a light black stone like jade. Now the basic usage is the capitalized form of the number "nine". Mostly used for bills, accounts, etc. Light black stone like jade.

Capitalize the number "nine", which is usually used to indicate tickets, accounts, etc. Five elements, also known as the theory of five elements, is the basic way to understand the world. The meaning of the five elements includes five basic trends in the evolution of Yin and Yang: gold (for convergence), wood (for growth), water (for infiltration), fire (for disillusionment) and earth (for integration).

Ancient philosophers in China used the theory of five elements to explain the formation of all things in the world and their relationships. It emphasizes the whole and aims to describe the movement form and transformation relationship of things. Yin and Yang are ancient theories of unity of opposites, and the five elements are primitive system theories.