superstructure

Noun

countable uncountable figuratively sometimes Britain Marxism

(nautical) Any structure built above the top full deck (FM 55-501). / Any material structure or edifice built on something else; that which is raised on a foundation or basis.

Japanese Meaning

上甲板上に構築された船舶の構造物 / 基礎や土台の上に築かれた建造物、または構造体

What is this buttons?

The captain ordered the crew to secure all equipment on the superstructure before the storm hit.

Google Translation / DeepL Translation

艦長は嵐が来る前に、上部構造にあるすべての装備を固定するよう乗組員に命じた。

Details

Sense（1）

(nautical) Any structure built above the top full deck (FM 55-501).

Sense（2）

Any material structure or edifice built on something else; that which is raised on a foundation or basis.

The Wards are open-topped, with skyscrapers rising from the superstructure. Towers are sealed against vacuum, as the breathable atmosphere envelope is only maintained to a height of about seven meters. The atmosphere is contained by the centrifugal force of rotation and a "membrane" of dense, colorless sulphur hexafluoride gas, held in place by carefully managed mass effect fields.

Google Translation / DeepL Translation