current in middle wire

例句：

1. 1. The electric current is running through the wires.
   电流正在通过电线流动。
2. 2. The scientists found a new way to control the flow of current in the circuit.
   科学家们发现了一种新的方法来控制电路中电流的流动。
3. 3. The power grid is designed to distribute the current evenly across the entire region.
   电力网设计成在整个地区均匀分配电流。