| |||
| 再流通系统 | |||
| 再循环系统 | |||
| 循环系统 | |||
| 循环水系统 | |||
| 循环水系统 | |||
|
recirculation system : 40 phrases in 13 subjects |
| Agriculture | 1 |
| Automobiles | 9 |
| Aviation | 3 |
| Earth sciences | 1 |
| Ecology | 2 |
| Electronics | 10 |
| Metallurgy | 1 |
| Name of organization | 1 |
| Nautical | 1 |
| Nuclear physics | 2 |
| Oil / petroleum | 1 |
| Refrigeration | 1 |
| Technology | 7 |