... backing weft反面纬纱 backing yarn基经纱 backpart背部 ...
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wrong pattern of backing yarn 错罗纹
backing g yarn 背面经纱
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Yarn is punched through a polypropylene backing with needles and then cut to form "u" shaped tufts.
草丝在簇绒机上被切割成“U”型，针织在聚丙烯底衬上。
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