平行纺织纱线经橡胶粘舍的织物，不论每平方米重量多少。
Fabrics composed of parallel textile yarns agglomerated with rubber, irrespective of their weight per square metre.
重量轻：每平方米仅重1.4公斤左右，减轻大楼负荷，使用安全，运输方便。
Light weight: per square metre weighs only about 1.4 kilograms, reducing load building, the use of safe, easy to transport.
纸重：纸的重量，以每平方米重若干克计。
Grammage: Weight of paper expressed as grams per square metre.
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