The Chinese word 常规 is formed by combining two characters, each contributing a core meaning that merges into a single, unified concept. The first character, 常 (cháng), carries the idea of "constant", "regular", or "common". The second character, 规 (guī), represents "rule", "regulation", or "norm". They are not merely placed side-by-side; the first character descriptively modifies the second, so the compound conceptually fuses into "constant rules" or "regular norms", which is naturally understood as "convention", "routine", or "standard procedure". The formation is a direct semantic blend where 常 defines the enduring, usual quality of the 规, creating a new, holistic term.