Scales are not polyphonic。It has only one standard pronunciation, which is chèng. A scale is a tool for measuring the weight of an object and usually consists of a lever with a scale and a tray for hanging the object.
The word symmetry, literally, "right" means correspondence, relative, and "weighing" is related to measurement and evaluation. As a tool, the essence of the scale is to accurately measure and evaluate the object, and through the principle of leverage, the weight of the two sides is balanced, so as to determine the weight of the object.
At the cultural and social level, symmetry is often given a deeper meaning. For example, in aesthetics, symmetry is regarded as a standard of beauty, and many buildings and artworks pursue the beauty of symmetry because it can give people a sense of balance and harmony. In philosophy and religion, symmetry is also often used to symbolize balance and harmony between the universes.
In addition, symmetry also plays an important role in mathematics, such as the symmetry of functions, the symmetry of graphs, etc. In mathematics, symmetry is often associated with deep-seated concepts such as conservation laws and the principle of invariance, and is an important means to reveal the laws of nature.
In general, as a tool, although the scale itself is not complicated, the symmetry and measurement and evaluation significance behind it are very rich and far-reaching. It not only plays an important role in daily life, but also has a wide range of applications and influences in many fields such as culture, art, philosophy, mathematics, etc.