钢筋混凝土 /gāngjīn hùnníngtǔ/ angolul

reinforced concrete▼(building material)
noun
[UK: ˌriːɪn.ˈfɔːstˈk.ɒn.kriːt] [US: ˌriːɪn.ˈfɔːstˈk.ɒn.kriːt]