连日来,淮北矿业集团许疃煤矿的职工们在就餐时惊喜地发现,各小吃部的工作人员服务工作更热情了,着装也统一更换成了白色工作服和工作帽,每家经 Over the past few days, the staffs of Xuantong Coal Mine of Huaibei Mining Group were pleasantly surprised when they dined. The staffs at the snack department were even more enthusiastic about their service. The dress was also uniformly changed into white overalls and work caps.