| |||
effective life time | |||
service life | |||
actual life | |||
active life; effective life (time); useful life (span) | |||
active life time | |||
useful life; useful life component | |||
available life; effective life; effective lifetime; useful time | |||
| |||
useful life span | |||
| |||
useful life | |||
| |||
effective life | |||
| |||
useful life |
有效 寿命 : 13 phrases in 9 subjects |
Aviation | 1 |
Business | 2 |
Commerce | 1 |
Drilling | 1 |
Metallurgy | 1 |
Oil processing plants | 1 |
Space | 2 |
Technology | 3 |
Wind Energy | 1 |