垂直线

chuí zhí xiàn yǔ shuǐ píng xiàn xíng chéng yī gè jiǎo

垂直线与水平线形成一个角。

The vertical line makes an angle with the horizontal line.

chuí zhí xiàn yǔ shuǐ píng xiàn zài cǐ xiāng jiāo

垂直线与水平线在此相交。

The vertical line meets the horizontal one here.