特别是交替推动技术变革与文化变革为接受这些改变提供了空间。

In particular alternating a technical change with a cultural change gives breathing space for changes to settle in.

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防务公司不仅面对来自各国军费削减的压力，而且还面临着来自政策改变与科技变革的挑战。后者同样意味着昂贵的大批量装备采购订单数量将会缩减。

Defence companies have to cope not only with reduced budgets but with a shift in policy and technology, which will also mean fewer orders for expensive pieces of kit.

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设计是一种构想与计划。人类在变革自身、变革社会以及改变生存环境的一切行为，都离不开设计。

Design is a vision and plans. Human beings change itself, change society and change the living environment of all ACTS, are inseparable from the design.

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