sandhiadj.连接音变的n.连接音变sandn.沙；沙子；沙滩；黄灰色vt.撒沙；打磨；以沙掩盖Sandblast and rust removing robot喷砂除锈机器人Sanding Discs with Velour Backing圆盘背绒砂纸sand trough simulation experiment沙槽模拟实验sand and gravel processing system砂石加工系统sand treatment in Uyhgur medicine维医沙疗sand layer self-purifying model沙层自净养殖模式sand excavation in river channels河道采砂sand stone-type uranium deposit砂岩型铀矿sand-stone-separate equipment砂石分选设备Sandino National Liberation Front桑地诺民族解放阵线