Too high a draft in ring frame.
细纱牵伸倍数太高。
The utility model comprises a cultivation bucket, a ring frame and a screen.
它是由栽培桶、圈架和筛网等三部分组成。
The ring frame and the screen can make the plant growing medium manually separated to be multi-layer with different height.
圈架和筛网可以将植物生长介质人为地分隔成高度不同的多个层次。
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