短语词组短语knapsack duster 背负式喷粉机;背式撒粉器powder duster 撒粉器stretcher duster 担架式喷粉机shorts duster 刷麸器;刷麸机manual duster 手摇喷粉机duster screen 除尘机筛网Troy Duster 达斯特MIIT DUSTER 喷雾喷粉机saddle duster 驮载式喷粉机feather duster 羽毛掸帚；鸡毛帚 返回 duster