 |
| |||
| 人工骨材 (ぢんこう・こつざい) | |||
| |||
| 人造骨材 River and Water Resources Glossary (Infrastructure Development Institute Japan) ; 人工骨材 (ぢんこう・こつざい) River and Water Resources Glossary (Infrastructure Development Institute Japan) | |||
|
artificial aggregates : 5 phrases in 2 subjects |
| General | 3 |
| Technology | 2 |