 |
| |||
| 可变作用 | |||
| 可变作用荷载 (load) | |||
| variable action: 11 phrases in 6 subjects |
| Animal husbandry | 1 |
| Business | 1 |
| Hydroelectric power stations | 5 |
| Refrigeration | 1 |
| Space | 1 |
| Technology | 2 |
|
| |||
| 可变作用 | |||
| 可变作用荷载 (load) | |||
| variable action: 11 phrases in 6 subjects |
| Animal husbandry | 1 |
| Business | 1 |
| Hydroelectric power stations | 5 |
| Refrigeration | 1 |
| Space | 1 |
| Technology | 2 |