运算: operation; arithmetic; opera ...和: mix; blend维护: safeguard; defend; uphold; k ...阶段: stage; phase; period; gradat ...运行和维护阶段: operation and maintenance phase维护阶段: maintenance phase早期养护阶段: early curing period安装和维护: installation and maintenance操作和维护: oam operation and maintenance; operation & maintenance存储和维护: storage and maintenance管理和维护: operation administration and maintenance检查和维护: i/m or im inspection and maintenance使用和维护: operation and maintenance性能和维护: performance and maintenance修理和维护: ram; repair and maintenance; repairandmaintenance运行和维护: operation and maintenance; operations and maintenance (o&m); run and maintenance运营和维护: o&m operations and maintenance治理和维护: operations, administration and maintenance操作和维护架: operation and maintenance frame运算和技术数据: otd维护(保养)阶段: maintenance phase前运算阶段: preoperation period; theory of cognitive development#preoperational stage操作管理和维护: oam operations administration and maintenance; oam operations,administration and maintenance操作和维护手册: manuals operation and maintenance; manuals, operation and maintenance操作和维护中心: operation and maintenance center