中点接地四线制 four wire earthed neutral system

电阻中点接地制 resistnace grounded neutral system

中点接地配电系统 neutral distribution system ; earthed neutral distribution system

中点接地阻抗 neutral impedance

中性点接地系统 dead earthed neutral system ; earthed neutral system

中性点不接地系统 [电] isolated neutral system ; neutral point earth system ; Neutral ungrounded system

中性点接地电力网 neutral grounding network

中性点有效接地系统 system with effectively earthed neutral

电网中性点接地 neutral point grounding system