They measured the strength of an electric current.

他们测量了电流的强度。

A liquid is decomposed when an electric current passes through it.

当电流通过时, 液体就分解。

Lower the pressure and largen the current of common electric current through transformer.

● 是利普通电流经过变压器作，使电压降低而电流变大。

The electro-magnetic microgenerator utilizes a moving magnet or coil for inducing an alternating electric current in a circuit.

微型电磁发电器以移动中的磁铁或线圈，在电路中制造出感应交流电。