热缩塑料包是一个流程，在产品周围附上一个封闭的塑料包，通常使用密封胶密封，然后对产品加热，通常使用加热管道，收缩塑料膜使之附着在产品上。

Shrink-wrapping is a process where a closed bag is formed around the product, typically using a

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热缩材料是用途广泛的高科技产品，辐照是生产热缩材料的关键工序。

Thermoplastic material is a kind of high scientific and technologic product in wide use, while irradiation is the key procedure in thermoplastic production.

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分析了窄带钢热连轧过程宽度拉缩的原因，给出了计算宽度拉缩率的方法，探讨了减少宽度拉缩的技术途径。

The cause of strip width shrink (SWS) during hot continuous rolling is analyzed. A method to calculate SWS ratio is provided, some approaches for SWS reduction are discussed.

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