以下为句子列表：
英文: Metallic materials with high strength and high tenacity have been applied to products such as armors ,speedboat, automobiles ,bulletproof vest and steel helmet,etc.
中文: 高强高韧金属材料已应用于装甲、快艇、汽车、防弹衣、钢盔等。
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英文: Peel-fold machine is the essential facility for making the high tenacity biscuits.By using the method of nappe-cutting,the peels can be piled to 6-7 layers.
中文: 叠皮机是制作高档韧性饼干必不可少的工序辅机，用切断叠层法是本机械的特点，叠皮层数可达6～7层。
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