power secondary system  电力二次系统

secondary assembly  二次组装

secondary distribution  二次配电; 转手交易

secondary distribution link  次级分布线路

Secondary Power  二次电力

Secondary Power Module  二次模块电源

secondary power network  低压电力网

Secondary power supply  二次电源

secondary power switch  二次送电开关

Secondary Power System  二次电源系统; 电力二次系统

Secondary System of Substation and Power Distribution Station  变配电所二次系统

secondary-secondary glycol  二级邻二醇

the secondary distribution of stress  内力重分布

10 kV power distribution network  10kV配电网

20 kV power distribution network  20 kV配电网

3-D power distribution  三维功率分布

absobed power distribution  抽运光功率分布

active power distribution  有功功率分配; 有功分配

aircraft automatic power distribution system  飞机自动配电系统