| |||
| 漏水調査 River and Water Resources Glossary (Infrastructure Development Institute Japan) | |||
|
leak detection : 4 phrases in 1 subject |
| General | 4 |
| |||
| 漏水調査 River and Water Resources Glossary (Infrastructure Development Institute Japan) | |||
|
leak detection : 4 phrases in 1 subject |
| General | 4 |