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| polder | |||
| polder, diked country | |||
| polder A generally fertile tract of flat, low-lying land (as in Netherlands and Belgium) reclaimed and protected from the sea, a lake, a river, or other body of water by the use of embankments, dikes, dams, or levees. The term is usually reserved for coastal areas that are at or below sea level and that are constantly protected by an organized system of maintenance and defense | |||
| diked marsh; new marsh | |||
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| polders | |||
| marsh soils; polder soils; marine alluvial soils | |||
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polder : 25 短语, 8 学科 |
| 一般 | 5 |
| 农业 | 2 |
| 建造 | 8 |
| 生命科学 | 1 |
| 磁性 | 2 |
| 社会科学 | 1 |
| 自然资源和野生动物保护 | 5 |
| 运输 | 1 |