变配电所二次系统
Secondary System of Substation and Power Distribution Station
变电所电量不平衡浅析
Analysis power substation energy unbalances
变电所电源的快速切换
Fast transfer of substation power supply
MH-Ni二次电池
MH-Ni rechargeable battery
不变二次估计
invariant quadratic estimates
部分二次二阶矩法
Part Second Order and Second Moment Method
大功率锂离子二次电池
high power lithium battery
电位双二次变化
Biquadratic variation of potential