基本解释沥青纸词组短语短语bitumen roofing felt 沥青屋面油毡saturated bitumen asbestos felt 浸沥青石棉毡bitumen n felt 沥青纸bestos based bitumen felt 石棉基沥青油毡sand bitumen felt 铺砂沥青毡专业释义土木建筑工程沥青纸