1. Turkey Hall area of 2000 square meters, the external rectangular, internal is a helical structure. 土耳其馆面积达2000平方米，外部呈长方形，内部则是螺旋状的结构。
2. GK serial helical bevel geared motor has high efficiency and long service life gear. It has feet panels arrangement, flange arrangement and shaft arrangement. GK系列弧齿锥-斜齿轮减速电机具有高效率和长寿命齿轮，有脚板式安装、法兰式安装和轴装式。
3. A printer that forms dot matrix characters by means of linear, ridged print hammers that impact paper and ribbon against a helical ridge on a rotating cylinder. 一种采用线性脊纹打印锤的点阵字符打印机，打印时打印锤撞击紧贴在螺旋脊纹旋转圆筒上的纸和色带。
