Sandaa桑多sandn.沙；沙子；沙滩；黄灰色vt.撒沙；打磨；以沙掩盖sand control equipment[机] 输砂控制设备sand-gravel material砂砾料sand preparing machine砂处理设备sand-filled subgrade填砂路堤sands - cement ratio砂浆比（Sw）sand interception rate截沙率sand-traffic ability沙滩通行能力sand cooling equipment旧砂冷却装置sand equivalent shaker在当量振动器sand screening machine筛砂机