Group 1 - The article highlights the busy schedule of the agricultural machinery cooperative in Wuzhi County, where the chairman, Shi Caiwang, manages over 70 harvesters and 100 operators during the peak "Sanxia" season [1] - Shi Caiwang is recognized as a local expert in agricultural machinery, having over 40 years of experience, and is known for quickly diagnosing and resolving machinery issues through video consultations with operators [2] - The cooperative not only serves its own members but also assists external operators from other regions, providing a comprehensive service that includes repairs and logistics support [2]