hydraulic main water main  总水管

main pole and main zero  主导

main road main scheme station  主系测站; 主测站

ring main structure of main and auxiliary lines  主副线环网结构

#3 main pier  金属; #3主墩

(Main spare part processing) craft  主要零部件加工工艺

1 000 kV main transformer  1000kV主变压器

10 kV ring main unit  10kV环网柜

10CrMo910 main steam pipeline  10CrMo910主蒸汽管道

1-Main Bearing-Pump End  1个主轴承─泵端

1-Main Bearing-Seal End  1个主轴承─封端

220 kV main transformer  220 kV主变压器

220 kV main transformer protection  220kV主变压器保护

Ⅱcross-section main girder  Ⅱ型截面主梁

3 main lines of time-cost-innovation  美国直升机学会

3200kW main fan  3200kW主风机

330 kV main transformer  内摩擦角; 330 kV主变; 330kV主变

500 kV main electrical connections  过敏性紫癜; 500kV电气主接线

500 kV main network  500kV主干网络

500 kV main power grid network  500kV主网架