actual life

• n. 有效寿命；实际寿命

例句

用作名词 (n.)

1. Buildings generally are capable of achieving long physical life spans.
   建筑通常能够达到很长实际寿命。
2. The life actually required for bearings naturally varies according to the nature of the application.
   轴承所需的实际寿命当然与应用的性质有关。