| |||
| 試験標板 River and Water Resources Glossary (Infrastructure Development Institute Japan) | |||
| 試験図 (shikenzu) | |||
|
test chart : 8 phrases in 3 subjects |
| General | 3 |
| Radio | 3 |
| Video recording | 2 |
| |||
| 試験標板 River and Water Resources Glossary (Infrastructure Development Institute Japan) | |||
| 試験図 (shikenzu) | |||
|
test chart : 8 phrases in 3 subjects |
| General | 3 |
| Radio | 3 |
| Video recording | 2 |