understructure
understructure — 名詞
1. the solid base built below ground level that holds up a building, bridge, or oth
基礎結構
建築物或其他大型構造物地下的承重底部
the solid base built below ground level that holds up a building, bridge, or other large object and transfers its weight to the earth.
The contractor inspected the concrete understructure before building the new house.
包商在建造新房子之前，檢查了混凝土的基礎結構。
the understructure of a building
An earthquake damaged the bridge's understructure, so engineers closed it for repairs.
一場地震損壞了這座橋的基礎結構，工程師因此關閉橋樑進行維修。
Yuki noticed cracks in the understructure of the old warehouse during the safety check.
Yuki 在安全檢查時注意到老舊倉庫的基礎結構出現了裂縫。
Without a solid understructure, the tower would slowly sink into the soft ground.
如果沒有穩固的基礎結構，這座塔就會慢慢陷入鬆軟的地面。
The building's steel understructure was designed to withstand strong winds and heavy snow.
這棟建築的鋼製基礎結構是為了承受強風和大雪而設計的。
- foundation
more common and can be both literal (concrete base) and figurative (origin/basis); 'understructure' is strictly literal and technical
- base
broader — the bottom part of any object; 'understructure' specifically refers to the supporting part below ground
- substructure
very close synonym, equally technical; 'substructure' is slightly more common in engineering writing
- superstructure
the part of a building above ground level that rests on the understructure
文法句型
the understructure of [noun]
用法筆記
Often used in technical or engineering contexts. The word emphasises the hidden, load-bearing part that is not visible once construction is complete.