 |
| |||
| bank sand | |||
| bar sand | |||
| river sand | |||
| R-sand (R-sand (river sand) is naturally occurring sand from riverbeds, with rounded, smoother particles that can vary in quality and are more susceptible to impurities. 'More); river sand (R-sand (river sand) is naturally occurring sand from riverbeds, with rounded, smoother particles that can vary in quality and are more susceptible to impurities. 'More) | |||
| stream sand | |||
| fluviatile sand | |||
| channel sand | |||
| gravel sand; gravelly sand | |||
| beach sand | |||
| fluvial sand | |||
|
речной песок : 7 短语, 6 学科 |
| 一般 | 1 |
| 军队 | 2 |
| 建造 | 1 |
| 水泥 | 1 |
| 矿物学 | 1 |
| 道路工程 | 1 |