Note that rooms of unusual size or shape, greater than normal wastage during hanging, or other special circumstances may affect the amount needed.
记下房间的不规则大小和形状，比正常损耗在悬挂之间，或者其他特殊情况下所消耗的数目都要大。
To introduce unit consume of PVC film in course of normal laminating and in the condition of variety impersonality factor affected, its origin and count method of the wastage were in detail depicted.
介绍PV c膜在正常贴塑生产的过程中，在受各种客观因素影响的条件下，所消耗pvc膜的单位消耗量，较详细地叙述了该消耗量的来源和计算方法。
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