于是Pearson先生在一本名叫《模型工程师》(Model Engineer)的杂志里，找到了咖啡杯发动机(coffee cup engine)的图纸，决定让颖来制作这个模型。
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航空学工程师将他们的模型放置在风道内来测量性能因素。
Aeronautical engineers take their models into wind tunnels to measure performance factors.
为了取得可预测性，传统工程师开发了一些数学模型和其他尖端技术。
Traditional engineers developed mathematical models and other sophisticated techniques for predictability so that they weren't forced to build things to determine their characteristics.
MDSD支持CMMI - DEV v1.2过程模型，它描述了系统工程和系统工程师的特色。
MDSD supports the CMMI-DEV v1.2 process model which characterizes systems engineering and systems engineers as follows.
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