是 联索支助办仅运营和维护了 410 台联合国所属发电机，由于没有签订系统合同和冠状病毒病疫情暴发，28 台发电机仍在采购中
Yes UNSOS operated and maintained only 410 United Nations-owned generators, as 28 generators were still under procurement owing to the lack of a systems contract and to the COVID-19 outbreak