Like the 777, you use the prototype program as a test bed for design ideas.
与波音777一样，您使用原型程序作为设计思路的试验台。
Make paper prototypes of one or more new design ideas and test them.
为一个甚至更多的新设计意念制作纸面模型，然后去测试它们。
You'll also need to test out your design ideas.
您还需要测试您的设计思想。
You'll also need to test out your design ideas.
您还需要测试您的设计思想。
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