头顶点

基于地面垂直目标的标定方法，由垂直目标（人体）的头顶点和脚底点得到垂直消失点和水平消失线。

In vertical ground objects based approach , vertical vanishing point and the plane vanishing line can be obtained by top-points and bottom-points of vertical objects ( always , human ) .

采用左、右耳分别和两耳同时施声刺激从头顶Cz点记录方法，观察了30例正常儿童（NC）和60例脑瘫儿童（CCP）的听觉诱发脑干反应（ABR）。

Auditory evoked brain stem responses ( ABR ) were recorded following left , right and binaural stimulation in 60 children with cerebral palsy ( CCP ) and 30 normal children ( NC ) subjects .

你知道你的头顶有点秃吗？

Ever see that little bald spot on top of your head ?

一阵霹雳在头顶炸响，大雨点开始降落下来。

A clap of thunder Burst overhead and heavy drops of rain Began to fall .

昨夜一阵倾盆大雨之后，天气凉快起来了。一阵霹雳在头顶炸响，大雨点开始降落下来。

It cooled off after the downfall last night a clap of thunder Burst overhead and heavy drops of rain Began to fall .