您要查找的是不是：
- 层状大地有限长接地导线频域电磁响应的快速计算方法A Fast Method for Calculating the Frequency-domain EM Response of a Finitely Long Grounded Wire over a Layered Earth
- 保护to defend
- 接地导线earthing conductor
- 接地导线管道ground conduit
- 电力线的保护接地Protective grounding of power lines
- 安全接地导线protective grounding conductor
- 保护接地与保护接零Protecting Ground Connection and Earthed Neutral
- 保护模式protected mode
- 电力线保护接地用指南Guide for Protective Grounding of Power Lines
- 导线lead
- 保护的lee
- 环境保护protect the environment
- 保护接地端protective grounding; protective earthing
- 保护措施safeguard
- 保护装置protector
- 保护接地导体protective earth conductor
- 继电保护relay protection
- 用导线轻触收音机使它接地grounded the radio By touching a wire to it
- 保护者protector
- 环保护ring protection
