电流

• At room temperature, thermal excitation can produce an unwanted current .
  在温室下，热激发可能产生所不需要的电流。
• A current is passed through earth materials not containing metallic minerals .
  电流在不含金属矿物的地层介质内经过。
• At predetermined temperature trigger-points the cooling current is increased .
  在预定的温度触发点上，冷却电流增大。
• The overvoltage varies inversely with the current density to some extent .
  超电压在某种程度上随电流密度成反比地变化。
• We have been considering the transistor with a current fed into the emitter .
  我们所研究的晶体管都是把电流馈入发射极。
• The strength of the magnet was large or small according to the strength of the current .
  磁的强度根据电流强弱而有大小。
• The portion of the current confined to the surface layer becomes negligible .
  流经上部地层的那部分电流变得可以忽略不计。
• An electric current, overcoming the resistance of the wires, invariably heats them .
  电流克服了导线的阻力总要使导线发热。
• The oscillatory current flowing in the coil produces an oscillating magnetic field .
  流过线圈的振荡电流产生一个振荡磁场。
• This was unlike the leyden jar, which merely gave a sudden rush of current .
  这与莱顿瓶不一样，莱顿瓶只能骤然发出一股电流。