开栓供暖！黑龙江绥芬河启动为期近7个月的超长供暖季

Group 1 - The core point of the article is the commencement of the heating season in Suifenhe City, Heilongjiang, due to a significant drop in temperature [1] - The heating supply officially started on October 10, marking the beginning of a nearly seven-month heating period [1] - The centralized heating will last until May 1 of the following year, providing warmth for residents throughout the winter and spring [1]