3) gritting material
粗砂;砂砾
4) gravelly coarse sand
砾质粗砂
1.
The earth dam of Houlonghe reservoir are built with gravelly coarse sand bed as dam base, and artificially filled in gravelly coarse sand as upstream and downstream sanded shell with loose structure, which cannot meet the needs of earthquake-resistance.
后龙河水库坝基为砾质粗砂层,上、下游砂壳为人工堆填的砾质粗砂,结构松散,多数不满足抗震要求。
5) coarse gravel sandstone
粗砾砂岩
6) grit
[英][ɡrɪt] [美][grɪt]
砂砾;粗砂 G
补充资料：砂砾
1.细碎的小石子。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条