短语词组短語concrete buttress 混凝土扶壁;混凝土扶牆arch buttress 飛拱;拱抹垛buttress out 尖滅ashlar buttress 琢石扶壁;詳細繙譯buttress weir 垛堰masonry buttress 圬工支墩buttress column 扶壁柱buttress pack 超前充填帶pierced buttress 穿孔式扶壁 返回 buttress