saturation ion current是什么意思

用法例句

The electric resistance enlarges and the saturation current declines due to drying of concrete in the early days,and in the end they tend towards the stability.

　本文实验研究了水泥基pn结的伏安特性,结果表明由钢纤维混凝土和碳纤维混凝土组成的pn结具有比较典型的pn结伏安特性,且随着期龄的延长,混凝土变得干燥而电阻增大,水泥基pn结导电能力减弱,单向导电功能逐渐加强,反向饱和电流趋向稳定。