precast concrete floor预制混凝土: precast concrete钢筋混凝土楼盖: reinforced concrete floor; slab floor肋形混凝土楼盖: ribbed concrete floor预制混凝土 预制混凝土构件: precastconcrete预制混凝土板: precast concrete plank; precast concrete slab下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:预制混凝土楼盖，即可在微信中查询翻译
