片语
free spiral rotation自由螺旋
Free Rotation algorithm自由旋转
six free degree rotation stand六自由度转台
Free-form rotation动画之自由旋转
free crankshaft rotation曲轴自由回转
free wheeling单向离合器;自由旋转;自由转轮机构
Free camera rotation自由旋转镜头
six free degree rotation六自由度转台
free internal rotation自由内转动
trouble-free rotation安全运转