Sanden桑登sandn.沙；沙子；沙滩；黄灰色vt.撒沙；打磨；以沙掩盖Sanding and Polish for stone石材打磨及抛光Sand is insoluble in water.沙在水中是不溶解的。sand-shale in north Shaanxi陕北砂泥岩Sandia Livermore Laboratories桑迪亚利弗莫尔实验室Sand-permanent mold casting铁型覆砂sand strength testing machine型砂强度试验机sand-desertification region概念模型sandblasted and acid-etched喷砂和酸蚀sand-blown-by-wind land风沙化土地sand-line carbonified board碳化石灰板