This can overload power grids, causing blackouts.

这会使电网超负荷，造成停电。

They have the potential to overload power grids, disrupt communication channels, and interact with Earth's own magnetosphere so astronomers pay close attention to the rare CME pointed toward Earth.

它们有可能使电网过载，破坏通信信道，并与地球自身的磁层相互作用，因此天文学家密切关注指向地球的罕见日冕物质抛射。