gravels
n.
沙砾( gravel的名词复数 );
砾石;
石子;
结石;
例句:
-
Suetion devices are inadequate in gravels or very porous soils.
吸水装置对砂砾或非常疏松的土壤是不适用的.
-
They may form concentrated pockets in gravels.
它们可能在砾石堆积物中形成富集的矿囊.
-
Graves are a mix of gravels, clay and sand carried out by the river.
它混合着碎石 、 粘土和河流带来的沙子.
-
The robot has returned pictures of classic conglomerates - rocks that are made up of gravels and sand.
来自BBC