垂直焦距 I

名画欣赏解读：  

Vertical : ['və:tikəl] adj. 垂直的n. 垂直线
例句与用法:
1. At right angles to a vertical line.
　 横的与垂直线成90度角的
2. An apparatus used for hoisting weights, consisting of a vertical spool-shaped cylinder that is rotated manually or by machine and around which a cable is wound.
　 绞盘，卷扬机一种用于吊起重物的装置。该装置包括一垂直的线轴形圆筒，由人力或机器使之旋转，在其周围绕有钢丝绳
3. The vertical line meets the horizontal one here.
　 垂直线与水平线在此相交.
4. The northern face of the mountain is almost vertical.
　 这座山向北的一面几乎是垂直的。
词形变化:副词:vertically 名词:verticality