created sense approved 顶板/頂板 · dǐngbǎn · abacus
顶板 / 頂板
dǐngbǎn
abacus
The flat slab forming the uppermost part of a column capital in architecture.
这个古希腊圆柱的顶板上刻有精美的花纹。
noun
created sense approved 顶板/頂板 · dǐngbǎn · mine roof
顶板 / 頂板
dǐngbǎn
mine roof
The rock layer or stratum forming the ceiling of a mine, cave, or underground excavation.
矿工在作业时必须时刻注意顶板的安全，防止塌方。
noun
created sense approved 顶板/頂板 · dǐngbǎn · roof plate
顶板 / 頂板
dǐngbǎn
roof plate
The top structural slab or roof plate of a building, tunnel, or other construction.
工程师正在检查地下室顶板的钢筋排布。
noun