In this paper a new criterion for thermal fatigue damage was proposed to evaluate the thermal fatigue performances of metallic materials.

本文提出一种新的热疲劳损伤判据，用以评估金属材料的热疲劳性能。

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Packing hot melt adhesive: to be used for paper box paper carton food packing chocolate candy packing metallic foil cellophane and so on.

包装热熔胶——纸箱、纸盒、食品包装、巧克力糖果包装、金属箔、玻璃纸等。

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Therefore, on the basis of theory and practice, Preparation and microscopic analysis of metallic coating samples are described in this paper.

对此，本文根据理论和实践，阐述了金属镀层金相试样的制备方法和显微分析技术。

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He said stores should check the quality of the paper and printing, as well as the metallic security thread and watermark.

BBC: Counterfeit notes warning for East Lothian shopkeepers