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- 冰川前砂砾层冰河冰渍前沉积的沙及砾石覆盖的区域
An area covered by sand and gravel deposited at the front of a glacial moraine.
- 地下蓄水层，砂石含水层含有水的泥、砂砾或多孔石的地下河床或地层
An underground bed or layer of earth, gravel, or porous stone that yields water.
- 在结冰的天气，在路上撒上砂砾心免路面太滑。
Grit is spread on roads to make them less slippery in icy weather.
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