短語詞組短語light -weight aggregate concrete shear walls 輕骨料混凝土剪力牆light t weight aggregate 輕骨料Light -weight aggregate concrete 者Pumice light -weight aggregate 浮石輕骨料artificial light -weight aggregate 人造輕骨料reinforced light -weight aggregate concrete 輕骨料混凝土high -strength light-weight aggregate 高強(qiáng)輕集料light weight silicates aggregate 輕質(zhì)矽酸鹽集料 返回 light weight aggregate