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 |
 |
 |
 |
|
|---|---|---|---|---|---|
| 1 | drainage facility | 排水設備 | |||
| 2 | improvement of irrigation and drainage facility | 用排水施設改良 | |||
| 3 | underground water drainage facility | 地下水集排水施設 | |||
|
|
|
|
|
|
|---|---|---|---|---|---|
| 1 | drainage facility | 排水設備 | |||
| 2 | improvement of irrigation and drainage facility | 用排水施設改良 | |||
| 3 | underground water drainage facility | 地下水集排水施設 | |||
