短語詞組短語slipping bar composite support 滑移頂梁支架parallel slipping bar composite support 并聯(lián)頂梁滑移支架linked roof bar cantilever support 組合頂梁懸移支架bus -bar support 硬母線固定金具;母線金具Bus bar support 硬母線固定金guide bar support 導(dǎo)桿支架torsion bar support 扭力桿支座core bar support marking 芯座劃痕boring bar support 搪桿承架 返回 bar support