![]() |
| |||
服务事业 | |||
劳役效用; 服务效用; 劳务效用 |
service utility : 20 phrases in 11 subjects |
Automobiles | 1 |
Construction | 1 |
Ecology | 1 |
Economy | 2 |
Electronics | 2 |
Engineering geology | 1 |
Librarianship | 1 |
Metallurgy | 6 |
Technology | 3 |
Telecommunications | 1 |
United Nations | 1 |