bare-barrel drum 光滚筒
Barrel Drum 发条鼓 ; 发条盒
double barrel drum mixer 连续式双滚筒再生搅拌设备
barrel switch drum switch 鼓形开关
double barrel drum mix plant 双滚筒连续式拌和楼
Any cylindrical item, such as a barrel, drum, pail, or tyre, that is not fully encased in a corrugated cardboard shipping container.
任何未完全装在瓦楞纸板运输容器中的圆柱形物品，如桶、鼓、罐或轮胎。
The drum was made out of metal from an old barrel .
这个鼓是用一个旧金属桶做的。
The utility model still USES the base structure that a threshing wheel drum and a shed cover are installed on a threshing stirring barrel.
沿用在打谷拌桶上装打谷轮鼓及棚盖的基本结构。
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