| |||
| 保护法; 防护法 | |||
| 保护措施 | |||
|
protection method : 15 phrases in 6 subjects |
| Animal husbandry | 1 |
| Business | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Management | 1 |
| Metallurgy | 3 |
| Technology | 8 |
| |||
| 保护法; 防护法 | |||
| 保护措施 | |||
|
protection method : 15 phrases in 6 subjects |
| Animal husbandry | 1 |
| Business | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Management | 1 |
| Metallurgy | 3 |
| Technology | 8 |