| |||
environment control system | |||
environmental management system | |||
environment management system |
环境管理系统 : 17 phrases in 9 subjects |
Aviation | 3 |
Earth sciences | 5 |
Ecology | 1 |
Electronics | 1 |
Environment | 2 |
Name of organization | 2 |
Space | 1 |
Technology | 1 |
United Nations | 1 |