Based on the analysis of the sheet metal technology, the advantages and disadvantages of traditional deployment methods are summarized.

论文在分析研究钣金件制作工艺的基础上，总结传统展开方法的利弊得失。

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Semi-solid metal technology is characterized by many advantages and believed as the key metal manufacture technology in 21 century by specialist.

半固态金属成形技术具有许多优点，被专家们称为21世纪新兴的金属制造关键技术之一。

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''Here are the beginnings of fire and engineering, the origins of pyrotechnology, and the bridge to more recent ceramic and metal technology,'' said Mr Brown.

“这是火和工程的开端，古代高温技术的源头，更晚的陶瓷、金属技术的桥梁。”布朗说。

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Although the differences between hot-metal technology and photography seem clear to outsiders, the dominant manufacturers in hot-metal typesetting struggled for years to develop new photo typesetters.

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They had access to better metal shaping technology.

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Most countries do not use body scanners, he said, preferring to use a combination of metal detection and technology that can identify explosives.

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