| |||
| 換気方式 River and Water Resources Glossary (Infrastructure Development Institute Japan) | |||
| 換気法 (かんきほう) | |||
| |||
| 換気システム (かんき・しすてむ) | |||
|
ventilation system : 4 phrases in 1 subject |
| Technology | 4 |
| |||
| 換気方式 River and Water Resources Glossary (Infrastructure Development Institute Japan) | |||
| 換気法 (かんきほう) | |||
| |||
| 換気システム (かんき・しすてむ) | |||
|
ventilation system : 4 phrases in 1 subject |
| Technology | 4 |