perforated cylinder 多孔滚筒 ; 多孔转筒
perforated cylinder dyeing machine 滚筒染色机
perforated metal cylinder [机] 筛板圆筒
perforated inner cylinder 开孔内圆筒
For heat, there is one silver cylinder-shaped grate, perforated evenly with holes the size of children's fingers.
取暖用的是一个银色圆柱状取暖炉，上面均匀地分布着孩子手指大小的小孔。
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