maintenance, repair and operation什么意思

Magdalena Ridge Observatory里奇天文台马格达莱纳河 maintenance, repair and operation维护、修理及操作 Memory Request Organizer内存请求管理器 Medical Review Officer (test result interpretation)医学评论军官(测试结果解释) Medical Review Official医学评论的官员 Maintenance, Repair & Operating/Operations维护、维修和操作/操作 Medical Regulating Office(r)医学规范办公室(r) Maintenance, Repair & Operations维护、维修和操作 Material Related Overhead资料相关的费用 Medical Readiness Officer医学准备军官 Mars Reconnaissance Orbiter火星侦察卫星 Maintenance, Repair, and Overhaul维修、维护、检修 Materiel Release Order物料发放定单 Multi-Region Operation/Option中成海华操作/选项 Manhattan Recorder Orchestra (New York)在纽约曼哈顿录音机乐团