Group 1 - The core viewpoint of the article emphasizes the importance of regulating the retail oil market to protect consumer rights, as demonstrated by the recent enforcement actions taken by the Lanzhou Market Supervision Administration against cheating practices at a PetroChina gas station [1][3] Group 2 - The special inspection focused on the accuracy of fuel dispenser measurements, checking the integrity of key components such as the control mainboard, encoder, and flow measurement converter seals, as well as ensuring no unauthorized tampering occurred [3] - Enforcement personnel also examined the gas station's compliance with food safety responsibilities, including the verification of food purchases and documentation, to ensure food safety standards are met [3] - The Lanzhou Market Supervision Administration plans to enhance daily monitoring of fuel dispenser measurements and establish a long-term regulatory mechanism to prevent measurement fraud [3]