Analysis E-learning behavior is the prerequisite to launch the network instruction system design and develop the educational resources online.

网络学习行为分析是开展网络教学系统设计和网络教育资源开发的前提。

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Northrop Grumman leads a joint venture with Raytheon to design, develop, and produce the F-22 radar system.

诺·格公司领导一个与雷声公司的合资公司，设计、开发和生产F-22雷达系统。

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The last attempt used traditional requirements, design, implement, and test cycles to develop the system.

最后一次尝试中采用了传统的需求分析、设计、实施和测试循环的方法来开发系统。

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Additional competitions to generate ideas for barcode scanning and face-object recognition, and to develop wireframes, a screen design, a system architecture, and more for the ISS FIT app will wrap up by late May.

FORBES: NASA Asks The 'Crowd' To Help Track What Astronauts Eat