短语词组短语dry moulding sand 干燥型砂dry -sand core mold 组芯铸型dry core sand 干砂心砂;干砂心砂英语dry loam sand 干旱土壤质砂土;干旱壤质砂土dry backfill sand 干回填沙dry reclaimed sand 干法再生砂 返回 dry sand