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 |
 |
 |
 |
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|---|---|---|---|---|---|
| 1 | soil improvement | 土壌改良 | |||
| 2 | soil melioration | 土壌改良 | |||
| 3 | materials for soil treatment | 土壌改良資材 | |||
| 4 | soil amendment | 土壌改良資材 | |||
| 5 | soil conditioner | 土壌改良資材 | |||
| 6 | soil improvement works | 土壌改良事業 | |||
|
|
|
|
|
|
|---|---|---|---|---|---|
| 1 | soil improvement | 土壌改良 | |||
| 2 | soil melioration | 土壌改良 | |||
| 3 | materials for soil treatment | 土壌改良資材 | |||
| 4 | soil amendment | 土壌改良資材 | |||
| 5 | soil conditioner | 土壌改良資材 | |||
| 6 | soil improvement works | 土壌改良事業 | |||
