The character 平衡 is formed by combining two semantic elements: 平, which depicts something level or flat, like a balanced scale, and 衡, whose ancient form represents a traversing beam on a weighing instrument. Together, they create a compound ideograph where the meaning of "level" (平) is directly applied to the concept of "measurement" or "weighing" (衡), visually and conceptually fusing to represent the state of balance or equilibrium.