If you haven't built an earlier generation plane, how can you possibly build the next one?

如果你不能更早的飞机，你怎么可能建造一个下一代的？

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This paper describes in detail the applications of the first generation common module and the second generation focal plane array imaging systems in warning aircrafts.

本文就第一代通用组件，第二代高性能焦平面阵列成像系统在预警机中的应用，作了较为详尽的评述。

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In the paper the curve interpolating calculation AD error analysis for CNC grinding of plane CAM are discussed, and the tool - path generation is also analyzed.

论述了数控磨削平面凸轮的误差分析和曲线插值计算，并讨论了砂轮的刀位轨迹的生成。

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He said the Boeing 737-800 Next Generation plane was received by the airline last month and was declared airworthy.

NPR: Investigators Probe Lion Air Crash In Bali

President Medvedev's signing of the new fifth-generation fighter plane contract is testament to this.

BBC: Russia-India arms deal backed by historic ties

The LG V300 will come with an impressive list of features including 2nd Generation Intel Core processors, 3D FPR display, In Plane Switch (IPS) screen technology that creates a stunning 178-degree viewing angle and a triple camera system for superb multitouch capability.

ENGADGET: LG V300 all-in-one hands-on at Computex 2011 (video)