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While commercial flight options have been limited since the war began, air traffic was starting to pick up.
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Stilfold, in Sweden, is one such start-up. "We're industrializing an easier way of forming sheet metal based on origami," says chief executive and co-founder, Jonas Nyvang. Stilfold uses a blunt wheel to make creases in sheet metal. That creates a curve or bend in the material, which also stiffens it. "Like when you hold [a slice of] pizza," explains Nyvang.。PDF资料对此有专业解读
Российские военные ударили по объектам энергетической и транспортной инфраструктуры, используемым в интересах Вооруженных сил Украины (ВСУ). Подробности атак раскрыли в Министерстве обороны.