Sandag桑达格
sandn.沙;沙子;沙滩;黄灰色vt.撒沙;打磨;以沙掩盖
sand-grain volume砂粒体积
sand reconditioning旧砂处理
sand-bearing wind含沙风
sand-bed filtrate砂床滤失量
sand storage hopper储砂斗
sand covered poplar沙埋杨树
Sandfly fever group白蛉热组
sand grain starting沙粒起动
sandblast equipment喷砂设备
sand-fixed forest固沙林