高层建筑顶部，作为其竖向构图在天空中的结束，是其自身功能和形象的重要组成部分，如同人的头、项、冠一样重要。
The top of high-rise buildings as part of its the end of vertical composition in the sky is a function of its own and an important part of the image , as the " first ", " Top ", and " crown " as important .
项冠