1#发电机单机启单泵
1# Generator Single Unit Initiating Single Pump
单缸鼓风机
single cylinder blowing engine
单机单负荷电力系统
Single-machine single-load power systems
单机单负荷简化法
single generator single load equivalence method
单级单开关
single-stage single-switch
Single stage single switch
单级单吸
single-stage and single-suction
风机单侧运行
fans unilateral operation
复速级单级冲动式汽轮机
single-stage impulse turbine with two velocity stages