短語詞組短語grooved d drum 槽紋圓筒grooved drum drum winder 槽筒式絡(luò)筒機(jī)Steel plate grooved drum 鋼板槽筒grooved drum spring base 帶槽的彈簧底板grooved drum friction wheel 槽形摩擦輪grooved drum iron roll 有槽鑄鉄軋輥grooved drum shaft 槽軸grooved drum presser foot 嵌線壓腳grooved drum roll 凹槽輥 返回 grooved drum