n. 上部构造, 上层建筑

[化] 超结构

[经] 上层建筑

[ noun ]
structure consisting of the part of a ship above the main deck
<noun.artifact>

Superstructure \Su`per*struc"ture\, n. [Cf. F. superstructure.]
1. Any material structure or edifice built on something else;
that which is raised on a foundation or basis; esp.
(Arch.), all that part of a building above the basement.
Also used figuratively.

You have added to your natural endowments the
superstructure of study. --Dryden.

2. (Railway Engin.) The sleepers, and fastenings, in
distinction from the roadbed.