短语
倒拱作用
reverse arching
倒拱式护墙
Counter-arched revetment
倒拱板
inverted arch bar
倒拱砌块
invert block
倒槽式拱
trough vault
被倒置的曲拱次要衬里
Secondary lining of inverted arch
倒地拱
stephania tetrandra s.moore
-
inflected arch
inverted arch
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