An explosive accident happened in a fieldcharging implementation of tunnel driving.
某隧道掘进施工现场在装药过程中发生了爆炸事故。
2
Contacts on the filter unit and the fieldcharging unit engage cooperating contacts on an enclosure mounted on the frame when the door is closed to supply electrical power.
当门关闭以供电时，过滤器单元和电场充电单元上的接触件配合安装在框架上的箱上的协配接触件。
3
Magnetic resonance coupling is thought to be safer than other methods of wireless charging because the intensity of the field can be increased without affecting other, non-resonant objects nearby.