| |||
保护环境 | |||
环境保护 |
protection of environment: 67 phrases in 13 subjects |
China | 3 |
Desert science | 1 |
Earth sciences | 3 |
Ecology | 3 |
Economy | 1 |
Environment | 2 |
Name of organization | 3 |
Patents | 1 |
Shipbuilding | 2 |
Technology | 10 |
Textile industry | 1 |
United Nations | 35 |
Water resources | 2 |