revolving disk meaning in English

块根收获机的旋转圆盘刀
旋转圆盘刀

The mud block is thrown on the center of the jolly s revolving disk , and if changed into a basic form of porcelain body accompanied body accompanied with the manual processes of squeezing and pulling and others
拉坯将泥团摔掷在辘轳车的转盘中心，随手法的屈伸收放拉制出坯体的大致模样。
On this was printed a picture of a pretty girl , holding a striped parasol , the colours of which could be changed by means of a revolving disk in the back , which showed red , yellow , green , and blue through little interstices made in the ground occupied by the umbrella top
卡片上印着一个漂亮的姑娘，手里拿着一把条纹太阳桑只要转动卡片后面的小圆转盘，这伞上的颜色就会变化。卡片上伞面部分开了一些小裂缝，从小裂缝里变化出红黄蓝绿的颜色。