北京开始供热系统试运行

Group 1 - The core point of the article is that Beijing has initiated the trial operation of its heating system in response to the forecasted rain and snow weather on November 6-7 [1] Group 2 - The city's boiler rooms are gradually being ignited as part of the heating system preparation [1] - The combined heat and power (CHP) network and heating plants are also being put into operation [1] - Staff members are conducting inspections to ensure the proper functioning of the heating system [1]