Welding and riveting are two associated operation procedures in the production process of structural metallic materials.
铆接工艺中的展开放样、下料、加工成型和连接装配等过程能产生强烈的机械性噪声。
Magnesium alloys are the lightest structural metallic materials, which can be used to reduce the weight of military equipments and improve their performance.
镁合金是最轻质的金属结构材料，是实现军事装备轻量化和提高军事装备各项性能的理想材料。
The density of magnesium and its alloys is yelatively low, only accounts for 64% of aluminum density and 25% of steel density, and it is one of the lightest structural metallic materials.
镁及其合金密度小，仅为铝的64％，钢的25％，是目前密度最轻的金属结构材料之一。
The present status of traditional metallic materials was discussed, it is considered that the metallic materials are the most important structural materials and functional materials.
对传统金属材料的现状也进行了分析讨论，认为金属材料是最重要的结构材料和功能材料。
The structural characteristics and performances of metallic filter materials in high-temperature gas filtration were studied and the factors which affected the filtration process were discussed.
开展了金属过滤介质结构特点与过滤特性的高温除尘实验研究，对其过滤除尘机理进行了探讨。
The structural characteristics and performances of metallic filter materials in high-temperature gas filtration were studied and the factors which affected the filtration process were discussed.
开展了金属过滤介质结构特点与过滤特性的高温除尘实验研究，对其过滤除尘机理进行了探讨。
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