常见例句双语例句Bituminous waterproof felts are main products for waterproofing in China not only at present but in the days to come.沥青防水卷材不管是现在还是今后仍将是我国的主导防水产品。 全国沥青防水卷材的生产发展很不平衡，总体水平较低。 返回 bituminous waterproofing