Sandaa桑多
sandn.沙;沙子;沙滩;黄灰色vt.撒沙;打磨;以沙掩盖
sand transportifig rate输沙率
Sand - gravel cushion砂砾垫层
sand-spraying machine喷砂机
sand -gravel material砂砾料
sand and dust particles沙尘颗粒
sand-drain foundation砂井地基
sand replacement method灌砂法,换砂法
sand-blasting cabinet[机] 喷砂柜
sand.and gravel mulch砂石覆盖
sand body heterogeneity砂体非均质性