steal-tube concrete的用法和樣例：
例句
- Wushan Changjiang River Bridge is a half-through concrete-filled steel tube arch bridge.
摘要巫山長江大橋是一座中承式鋼管混凝土拱橋。 - Concrete filled steel tube structure is characteristic of good bearing capacity, ductility, anti-seismic capability and easy construction.
鋼管混凝土結構具有承載力高，延性好，抗震性能優越，施工方便等特點。
