cobble gravel

cobble gravel 基本解释

卵石砾石

cobble gravel 用法和例句

1、Bored Piles Construction Technology for Soft and Hard Inter with Silt and Cobble gravel Rocks Layers

淤泥层与卵石层等软硬互层钻孔灌注桩施工技术

重点词汇

cobble n. 圆石, 鹅卵石 vt. 铺鹅卵石, 修, 粗粗地修补

gravel n. 沙砾，碎石；砾石；[医]结石 vt. 以砾石铺路；使困惑；使（船）搁浅在沙滩上