Remove ads
来自维基百科,自由的百科全书
上層建築或上層結構、上部結構、附加結構、超結構(英語:Superstructure)指的是在現有結構的基準上向上擴展的結構[1]。该術語適用於各種物理結構,如建築物,橋樑或工程學自由度為零的船舶等。
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.