- 倒 reverse
- 底 bottom; base
- 高程 altitude; elevation
- 倒拱底高程 倒轉水平 管道內底標高 invertlevel
- 倒拱底 bottom of the invert
- 倒拱底板 inverted arch floor; inverted-arch floor
- 河底高程 river bed elevation
- 有襯砌的倒拱底板 pave invert
- 平均河底高程 mean bed level
- 倒拱 arch invert; inflected arch; inverted arch; reversed arch
- 拱底 intrados
- 平均河底高程縱剖面 mean channel bed elevation profile
- 高程 altitude; elevation◇高程測量 height measurement; 高程差 difference of elevation; 高程點 altimetric point
- 倒拱板 inverted arch bar
- 拱底面 barrel
- 拱底石 [建筑] elbow; springing block
- 仰拱底 lwl
- 底高比 base height ratio; base-altitude ratio
- 牙底高 dedendum
- 云底高 height of cloud base
- 倒拱;倒置;內底 invert
- 倒拱基礎 inverted arch foundation
- 倒拱砌塊 invert masonry block
- 倒拱式懸鏈 hog chain
- 倒拱作用 reverse arching
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