Sandru桑德鲁
sandn.沙;沙子;沙滩;黄灰色vt.撒沙;打磨;以沙掩盖
sand adherence mechanism粘砂机理
sand-carrying capacity含砂量
sand-gravel extraction采砂
Sand-colored Nighthawkn.沙夜鹰
sand-bailing equipment捞砂装置
Sand-fixing vegetation固沙植被
sand prevent coal pillar防砂煤柱
sand control engineering防沙工程
sand-mound of Nitraria白刺沙堆
Sandu autonomous country三都水族自治县