Padding for bituminous waterproof sheets 沥青防水卷材用胎基
Adhesives for polymer waterproof sheets 高分子防水卷材胶粘剂
The cartons lined with plastic sheets are waterproof, and as the boxes are made of cardboard, they will be handled with care.
纸箱内都衬有塑料布，是防水的，而且由于箱子是硬纸板的，所以在搬运的时候就会小心处理。
The roof, which came next, has a layer of straw bales for insulation and is covered with sheets of plastic to make it waterproof.
其次是屋顶，用秸秆捆覆盖，外加塑料板以防水。
The cartons lined with plastic sheets are waterproof.
有塑料纸做衬里的纸盒是防水的。
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