巡检 (xún jiǎn) is a compound noun meaning 'routine inspection' or 'patrol check.' It combines 巡 (xún), meaning 'to patrol' or 'to make rounds,' and 检 (jiǎn), meaning 'to inspect' or 'to examine.' Together, they emphasize a systematic, scheduled review—often performed by staff to ensure safety, functionality, or compliance. Unlike a one-time audit, 巡检 implies repetition and coverage of a defined area or set of equipment.

This term is widely used in industrial, technical, and facility management contexts—for example, factory workers checking machinery, security personnel walking designated routes, or IT staff monitoring server rooms. It conveys professionalism, responsibility, and preventive maintenance. While it can appear in formal reports or work instructions, it’s not typically used in casual daily conversation. The verb form is rarely used alone; instead, phrases like 进行巡检 (jìnxíng xún jiǎn, 'to conduct a routine inspection') or 完成巡检 (wánchéng xún jiǎn, 'to complete the patrol check') are standard.