According to Terrafugia, the new design features improvements based on data acquired during drive and flight testing of the proof-of-concept model.

据泰拉夫加公司的介绍，公司在观念模型验证的驱动和试飞过程中所取得数据的基础上，使新的设计性能得到了进一步的改进。

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Testing is based around the contracts not the design.

测试是围绕契约而不是设计进行的。

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Perform a methodology-based full software life cycle development for these applications, including requirements analysis, design, and development and testing.

对这些应用程序执行基于方法的完整软件生命周期开发，包括需求分析、设计以及开发和测试。

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In his notebook, the Scout must demonstrate an initial concept, multiple design iterations based on initial testing, and feedback from blind testing.

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But there may eventually have to be a trade-off: ending testing in return for building some simpler, safer warheads (based on a previously tested design).

ECONOMIST: Nuclear disarmament